单词 | Density |
例句 | 1) Do you know the density of population in this area? 2) Aluminium is low in density. 3) The sample's density is a measure of its purity. 4) Lead has a high density. 5) The increasing population density will even further congeal traffic. 6) The region has a very high population density. 7) The area has a high/low population density. 8) The population density in this city is very high. 9) We were unable to move because of the density of the crowd. 10) Would it collapse to infinite density? 11) This shrinkage increases the density of the pot. 12) The main problem is energy density. 13) But one can not simply associate high lexical density with writing,[http:///density.html] and low lexical density with speaking. 14) Cumulative Density Function By definition, an uncertain quantity is one whose value can lie anywhere along a specified range. 15) The reasons for this high density are not yet known. 16) In some individual neighborhoods, the population density is three times greater than in the infamous slums of Calcutta or Jakarta. 17) The density of optical interconnections can be much greater than even the most advanced silicon and gallium arsenide processes. 18) The capacity was achieved by increasing storage density on the glass platter and adding one thin-film read-write head. 19) This would be expected from differences in the density and thickness of continental and oceanic crust. 20) Even fraction of a second, the optical density of the nucleus is measured and stored in the computer's memory. 21) Large retail chains are usually only prepared to locate stores in areas of high population density. 22) Astronomers know that Pluto and Triton have nearly the same size, mass, and density. 23) It was discovered that black girls gain 34% more bone density during puberty, compared to only 11% in white girls. 24) Continental lithosphere stands higher than oceanic lithosphere because continental crust is both of greater thickness and lower density than oceanic crust. 25) The minimum radius of the body for which this direct contest is established depends on the density of the body. 26) For example, V4 in rhesus monkeys contains a very high density of colour coding cells that are unresponsive to white stimuli. 27) Is essential for normal skeleton development in children and adolescents, and for maintaining high bone density in young adults. 28) The basic mechanism that undermines the traditional way of life is the ever increasing number and density of the population. 29) These are projected on to the surface of the ganglion cell density function in the upper part of the figure. 30) This would mean that the atom, and indeed all matter, should rapidly collapse to a state of very high density. 1) Do you know the density of population in this area? 31) The dominant term in the stress-energy tensor is therefore the energy density Too. 32) Describes the design characteristics of the nine generic house types used to estimate the capacity and density of large sites. 33) As the winding current is increased, however, the flux density in the iron eventually reaches its saturation level. 34) In addition, this measure gives a potentially better packing density than conventional indexing techniques. 35) Using the 1734 census figures, this gives an average density of about 64-65 persons per square kilometre for the Piedmontese territories. 36) Where there is a high population density and a rapid population turnover, the church must achieve visibility. 37) Positive Richardson number corresponds to a stabilizing density gradient; turbulent motion can not be sustained when Ri becomes large. 38) Everything would then be crowded together in a state of infinite density: the end of the universe. 39) When resorption overtakes formation, the result is a decrease in bone density and strength. 40) Any lesser density makes the private appropriation of lands ineffective and the potential supply of paid labour insufficient. 41) Bouguer anomalies include a correction for altitude but only on the basis of an average crustal density. 42) He suggested that the main cause of social differentiation was the increase in population density. 43) Records can be added of course, but this will increase the packing density. 44) The mean density of Mercury indicates that its interior is substantially different from the interiors of the other terrestrial planets. 45) The non-crystallographic symmetry was established from the electron density and heavy atom sites. 46) Rural counties such as Gwynedd suffer particularly since they often have very low density settlements, rugged terrain and relatively poor roads. 47) To attain hydrostatic equilibrium the position of the lithosphere adjusts vertically in accordance with its density and thickness. 48) Many complex interactions can take place with the co-precipitation of two or more minerals of different density. 49) A dose response to oestrogens has been shown with increasing doses having greater effects on bone density. 50) This variation in signal intensity may reflect the differences in the cell density of tissues that express the gene. 51) It is possible to achieve a density of half a billion interconnections per square centimeter. 52) Tests were converted Tests to measure bone density in astronauts living in space stations have been converted to test for osteoporosis. 53) The role of the density gradient depends on its sign. 54) Signal morphology was analysed by the probability density function for the amount of time the signal spent away from the electrical baseline. 55) Besides its political and racial distribution, population density varied greatly. 56) There is not much temperature-produced density contrast at a given level; thus this does not much affect the buoyancy force. 57) The jump in density across the boundary is twice what it is where the solid earth meets air. 58) When corrections are made to take account of these differences in crustal density the magnitude of gravity anomalies is significantly reduced. 59) Two phasing methods were used to obtain electron density maps. 60) The vertical bars show the region of H5 that has been built in the electron density map. 61) To achieve real density would require a volume hologram, made from a photorefractive crystal. 62) By the second act, with its greater density of incident, I found my sympathies withdrawing. 63) Serum gastrin concentrations did not correlate well with changes in the endocrine cell density. 64) The illustrations throughout achieve density without confusion, fecundity without claustrophobia. 64) try its best to collect and create good sentences. 65) The percentage improvement in spinal bone mineral density is similar to that reported in normal women receiving this dose of oestrogen. 66) The spin-down energy flux density is the third highest known, after the Crab and Vela pulsars. 67) We are concerned with the predominantly horizontal mean flow of a fluid whose mean density varies vertically. 68) They are lighter in colour and lower in density than basalts or andesites, and contain fewer dark minerals. 69) The enterochromaffin like cell density was determined in randomly selected fields. 70) Oceanic lithosphere has a mean density rather close to that of the immediately underlying asthenosphere. 71) The theory also predicted that the average density of galaxies and similar objects should be constant both in space and time. 72) It is also the statement of forage area to calculate stocking density. 73) This is more likely if increasing wealth is matched by increasing population and increasing density of population. 74) However, our uncertainty about the present average density of the universe is even greater. 75) When the mare basins were excavated the fragmentary material beneath them must have been compressed to a higher density than before. 76) The work that Penrose and I did showed that they would continue to collapse until they reached a singularity of infinite density. 77) It provides an opportunity for the docklands to be redeveloped as a high quality, high density part of the city itself. 78) Computer simulated graphics of these species show electron density delocalised across three centres. 79) The ventral interradial areas are also covered with spinelets although the extent and density of covering varies. 80) The benefits included higher bone density, faster reaction times, greater muscle strength and better balance. 81) We can corroborate our timescale of the circulation by looking at the changes in density surface of the salinity minimum. 82) The most obvious differences are the lower density and thermal conductivity of plastics compared with glass. 83) A variation of this method makes use of a density gradient column. 84) If the density increases upwards, then buoyancy forces provide an additional source of energy for the turbulence. 85) None the less a good deal of basic information can still be portrayed with the traditional concept of population density based on administrative units. 86) Then a machine like this can be used to measure bone density. 87) The higher subject indexing density ensures that relevance is also high. 88) That is due not just to its comparatively high transport costs but to its low density. 89) One study that identified 25% of women had a bone mineral density more than 2 standard deviations below normals. 90) For surface transport, although an equally high energy density fuel is unnecessary, an effective method of energy storage is vital. 91) This gave an average population density of over 1600 inhabitants per square mile in 1981. 92) An alternative explanation of such uplifts involves the effects of density changes in minerals in the upper mantle. 93) The correlations between steroid dose and the changes in bone mineral density were not statistically significant. 94) The height of the curve at any point on the dimension axis x is called the probability density of that particular value. 95) The universe might then have re-expanded without going through a state of infinite density. 96) The concept had greater effect upon the building of suburbs,[http:///density.html] which became leafier and of lower building density than before. 97) In particular there are close associations between nesting density on islands or islets, foraging habits, breeding ecology, and behaviour. 98) Each patient had three measurements of bone mineral density and rates of bone loss were estimated by linear regression for each subject. 99) From such melts the lower density silicates separated upwards to form a crust. 100) When such material is used it must be ensured that it conforms approximately in density and shape with the natural beach material. 101) To answer this question we need to know the present rate of expansion of the universe and its present average density. 102) But pumped up to the density required for a robot, circuit strangeness becomes indelible. 103) Figure 1 shows the cumulative absolute changes in bone mineral content/bone width and bone mineral density after ranking each patient by age. 104) The density of the landfall was critical to calculating at what moment the dam would capitulate. 105) However, the density of that material is poorly defined by these observations. 106) The sampling frequency of water depends under regulations upon population density. 107) We must assume that the density of information packing in spoken language is appropriate for the listener to process comfortably. 108) With the use of filtration and aeration it is possible to increase the density of stocking. 109) The problem has always been that all of these methods carry much less energy density than petrol, hence less power. 110) Phobos and Deimos are small, irregularly shaped bodies, generally similar to carbonaceous asteroids in color, reflectivity, and density. 111) At this packing density the average search time for a given record is 0.732R, where R is the device rotation time. 112) The good stiffness, combined with low density, means that wood is very efficient in beams and columns. 113) Hologic makes medical equipment that measures bone density, used to diagnose osteoporosis. 114) They argue, as others have done, that screening is appropriate because bone density is related to subsequent risk of fracture. 115) In some this may be a result of an imprecision of the techniques of bone density measurement. 116) Presumably there are factors that control the size, and they depend on the population density. 117) Newer electrodes using transparent indium-tin oxide as conductor material have increased the electrode density from 36 to 64 per square millimeter. 118) The integrated flux density for the shell in Fig. 1 is 3.280.24Jy. 119) Negative Richardson number corresponds to a destabilizing density gradient; both shear and buoyancy give rise to turbulence generation. 120) When we added salt to the water we increased its density. 121) For this reason, an increase in population density often precipitates a round of emigration. 122) The introduction of the plough made possible much greater density of population, concentrated in villages and manors. 123) The City proper now constitutes nearly two-thirds of the metropolitan population and maintains a low density among cities of comparable population. 124) All maps show electron density contoured at 1 standard deviation[Sentencedict], with the current model displayed for comparison. 125) In such a model the weights themselves will have a direct interpretation as the average population density per Landsat pixel. 126) The intensity of scattering is a function of the electron density and therefore of the refractive index. 127) Warming occurs so slowly that the descending lithosphere retains its high density characteristics for a very long time. 128) Figures 2 and 3 show the percentage changes in bone mineral density. 129) The high overall density reflects the urbanized nature of the population. 130) High saturate induction density—minish the coefficient of the instrument. 131) The tradeoff of a simulation is between mesh density and simulation time. 132) The effect of sliding velocity and the current density on electrical friction and wear performance of the Ag-MoS_2-G-CNTs was studied. 133) The dissociative adsorption of cyclopropane on the copper surface was studied using density functional theory. 134) Phosphorus acid is added, so as to make it phosphonated. The new oligomer has high density branched chain of phosphonic acid functional groups. This product has undergone tests such ass... 135) On the basis of carrier noise power density rate (C/N0) of GPS receiver, it analyzed the influence of suppressed jamming to carrier phase measuring accuracy of GPS receiver. 136) In cooling storage ring heavy ion beam is plasma of high density. when a big power laser interacted on it , it will get ultra-high temperature. 137) The effect of density ratio on suction surface and leading edge is more evident. 138) Based on this, the pourable parameters of paste and more rational calculation of the theoretical maximum density of grouted composite materials were proposed. 139) The loading density of the hollow filaments in the film device can reach 20-60 percent, thereby improving mass transferring efficiency and handling capacity. 140) The compression and density make this a difficult book to read, but it richly rewards the effort. 141) Valve motion is analyzed with different refrigerants in the compressor. It is discovered that density of refrigerant have great influence on the movement of valve. 142) The free cyanogen determinator is used to make density analysis of free sodium cyanide in the cyanide leaching solution of gold ore. 143) Soft-switching technique can help improve the efficiency and power density of the converter by reducing switching losses. 144) Model (7) was fit to estimate wool fineness, wool bend score, wool density score and wool oil score. 145) The secondary key factors were the slope position, tree stump density and fallen log density. 146) The symmetry potential turns out to depend strongly on both momentum and density, while it is almost independent of the isospin asymmetry. 147) The correlation coefficients of rat density, deratization rates and the incidence of rat transmissible diseases were calculated. 148) Objective To establish Anopheles minimus density evaluation model based on climate, environmental and remote sensing data. 149) The density of Mytilopsis sallei near outfall of shrimp pond was higher than that far from outfall of shrimp pond both on panel and in sediment. 150) Objective: To compare the impact of two different kinds of kinesiotherapy - jogging and dancing on bone metabolism and bone mineral density(BMD) in postmenopausal women. 151) It indicates that the density correction is necessary to obtain a correct total triphase flow rate. 152) The authors also determine the shape of the quasiparticle density of states and the anisotropy of the upper critical field and the superfluid density. 153) The density of lymphatic tubes around the internal jugular vein, accessory nerve and sternocleidomastoid muscles was much higher than that around the external jugular vein and cervical plexus. 154) A grid-based density biased sampling algorithm (G_DBS) was proposed. It got approximate density biased samples through scanning data only one time. 155) High saturation flux density can improve the work point of transformers and reduce the volume of power supply. 156) First, soil erosion modulus can be estimated by using water erosion model, and the maps of soil density and soil horizon thickness can be derived from soil detailed survey data. 157) With increasing acid value, density, salt and sulfur in Liaohe Crude, The HCI-H2SO4-H2O corrosion in overhead condensing system of atmospheric-vacuum unit was deteriorating. 158) The character of carpet, besides fibrous character and treatment processing, have very big concern with method of density of fibrous of wool cloth with soft nap, weight, slub at the same time. 159) Objective: To study the association between the ratio of serum triglyceride to high density lipoprotein cholesterol(TG/HDLC) and macrovascular complications in aged type 2 diabetes in Quanzhou. 160) The profiles of density, velocity, temperature, pressure and Mach number can be obtained by the computation. 161) The attenuation constant is in proportion to the density of the scattering dots, and also increased with the laser beam energy that records the information dots. 162) It was found that its oxygen index, smoke density were directly proportional to content of carburizer whereas its initial expanding time was inversely proportional to content of carburizer. 163) As a special case, the oscillation behaviors of the absorptive device with two equal-length segments:threshold conditions, carrier density and wavelength tuning range have been analyzed. 164) Safety shoes in smooth full leather, anti-bacterial lining and insole, Polyurethane double density sole, oil-resistant, anti-static, water-proof available, steel toecap, steel midsole available. 165) Conclusion The density of Aedes albopictus in the old village was higher than that in the other environments such as new village, airport, holiday region in Wuyishan City. 166) For a string of specified length, tautness and density only certain note can be generated. 167) The quantity of matter is the measure of the same, arising from its density and bulk conjointly . 168) A method of enhancing the precision of linear borderline measurement is proposed, and the highest precision that the limited density data sampling can reach is discussed. 169) Adenocaecinoma was seen in3cases and was manifested as irregular, lobulated mass of uneven density. 170) This paper makes analysis on metropolis underground power transmission in China, and presents two new cable network patterns which are suitable for the urban load density areas. 171) Soil bulk density, non-capillary porosity decreased in large degree, and capillary porosity, capillary moisture capacity increased in different degree of different rehabilitated forest. 172) Vector surveillance results indicate that Aedes aegypti was not discovered but Aedes albopictus had wide distribution and high density. 173) Next April, the company plans to introduce a 2.9 ampere-hour version of the nickel-oxide, lithium-ion battery with a volumetric energy density of 620 watt- hours per liter. 174) Considering the inconvenience of using the magnetic vector potential as state variable, magnetic flux density is used as the state variable in the design optimization. 175) The more exposure point arrangement, the higher the resolution, thethe size the maximum density. 176) Using the isostatie response function technique, we have investigated the isostasy and crustal density structure of Panzhihua- Xichang region, which was supposed to contain a continental rift valley. 177) It is confirmed that it is a effective method to predict the diesel piston life with total strain - energy density, and that the in-phase thermal fatigue evaluation is the most effective method. 178) The mottled look of the Cosmic Microwave Background radiation is the result of differences in temperature and density. 179) At the same current and frequency, the magnetic flux density increases as the stirring gap width decreases gradually. 180) The maxim setting depth of tubing is related to its strength, density, inner and outer pressure difference as well as wellbore fluid's buoyant force to tubing string. 181) The fourth chapter studies the density of distribution of real estate agency of Guangzhou. 182) The molecular parameters of 12 halogenated ethanes were fit to experimental data for vapor pressure and saturated liquid density. 183) Affected by electromagnetism and structure, the rotor shaft of big length to diameter ratio high power density asynchronous motor shows low intensity and bad rigidity. 184) Urban bounds, on the other hand[], would be short due to the increased density of the area and the desire to maintain security and not overextend any one element. 185) The arc pressure distribution is in concordance with the hyperbolical curve and the current density distribution is in concordance with the Guass distribution under the presented experiment condition. 186) But stand volume descents to a great extent, age class and stand density structure are maladjusted badly, and the number of stand growth is low. 187) Gaussian Mixture Density and Decomposition ( GMDD ) is a hierarchical clustering method based on robust statistical theory. 188) METHODS By using transmission electron, image-manipulation system techniques, the volume density, mean diameter of the granules and numerical density of the atrial specific granules were studied. 189) The electrical potential, field and carrier density in emission layer of single layer organic light-emitting devices are numerically studied based on the trapped charge limited conduction theory. 190) The mechanisms thermal decomposition of 5 - nitro - 1 - hydrogen - tetrazole are studied by density function theory. 191) CONCLUSIONS:Hirudin could prevent PVR from being formed or developing and had protective function on retina, whose mechanism related to the decrease of density of PDGF in vitreous body. 192) The drop of suction pressure which is caused by flowing obstruct of linked tube leads to serious influence to refrigerant density. 193) Methods The survival rate and apoptosis rate of QBC939 after being treated with different density of 5-aza-2'-deoxycytidine were detected by using the method of MTT and flow cytometry. 194) The electronic density of states (DOS) of the system as well as low temperature thermodynamic quantities are obtained under the saddle point approximation. 195) An apparatus for measuring the optical density of a material, such as a photographic negative. 196) The differential gain coefficient decreases with increased sheet carrier density. 197) Such differences result in uneven eddy current density on electrode surface, which will affect the electrode remelting rate. 198) First, the effects of dry density, bentonite percentage and bentonite grain distribution on its permeability were studied. 199) The direct buried cable (for long distance application) shall be additionally protected by a HDPE pipe (High Density Polyethylene) or a duct linear, which shall be extruded in the factory. 200) Key city's centricity is reflected by both population density and proportion of people whose occupations have motive function, while industry structure is the key factor to influence centricity. 201) The ion energy and the density of beam flux of cold cathode ion source were measured by pentagrid probing and Faraday cup. 202) The calculating results show that the circulating flow rates are increasing with the submergence ratio but reducing with the liquid-gas density ratio. 203) Fluctuating load whose main inducement is the vast variety of station density and the large-scale degree surge of data collision is one of the direct reasons to bring low throughput and stability. 204) The'supersaturation ratio " is the ratio of the excess vapor density to the saturation value. 205) The magnetic fluid sealing pressure is mainly related to the magnetic flux density of the magnetic gap, and also related to the structure. 206) Significant differences were not found in theoretical yield and yield characters under reasonable density. 207) By the side wall type gate electrode flash memory unit structure with the shared word line, the invention realizes the two-position storage, thereby improving the storage density. 208) Antigen density on the tumor cell surface influences the cytotoxic sensitivity. 209) The different density of mu opioid receptor may be referable to different function of organ. 210) In this paper, 12 years old Chinese Fir clones were studied on the genetic variation of growth properties, basic density and tracheid morphological characteristics. 211) The sclerotium disease was serious when the planting density of the vegetable was too greater and continuous cropping was made in the diseased field. 212) Unscented KF utilizes a set of definite samplings to approximate posterior probability density function, while particle filter uses random particles. 213) Conclusion:Homogenous cystic or soft tissue density and no enhancement or just lightly annular enhancement may be the main characteristic changes on CT in case of appendix mucocele. 214) The dislocation density of an epitaxial layer is reduced and is distributed homogeneously, and the usability of the thick-film is greatly improved. 215) Bone density in primary amenorrhea patients was lower than normal controls, except in CAH with 21 hydroxylase deficiency it was higher than controls. 216) Also, with changes in boundary density, the natural frequency would show significant changes ( p 0.05 ). 217) Very small, high density interconnect with twist pin contact for demanding digital applications including medical, instrumentation and satellite systems. Versions to meet MIL-C-83513 specifications. 218) Recently the imported porous polyethylene framework of high density has been used for external ear reconstruction by cutting and assembling in accordance with the shape of the normal ear. 219) In this paper, the hardpan roughness of paddy field was measured, autocorrelation and power density spectrum were analyzed. |
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