单词 | Tungsten |
例句 | 1, The filaments of light bulbs are made from tungsten wire. 2, Oxygen adsorbs on tungsten. 3, In the future, demand for metals like tungsten will outrun supply. 4, Its mountains contained gold, silver, copper, iron, and tungsten. 5, Roma table Grillo low-voltage tungsten halogen lamp with dimmer switch. 6, It uses Tungsten Plug technology, which helps integrate the various elements in the chip in as small a package as possible. 7, The other metal used for anti-tank rounds is tungsten, which is also very hard and dense. 8, Copper, zinc, arsenic and tungsten are associated with tin in quartz-tourmaline veins. 9, Tungsten, molybdenum, chromium and manganese, for instance, are used to harden steel. 10, The intensity of the tungsten blue complex is proportional to the concentration of uric acid in the specimen. 205. 11, The illumination source was either a single tungsten lamp or this plus a conventional warm white striplight as appropriate. 12, These are simple combinations of metals like chromium, tungsten, iron or nickel, with carbon monoxide. 13, It is the second largest branch of tungsten consumption. 14, Low MU Thoriated Tungsten filamentary heating structure. 15, Decreases tungsten electrode life and increases balling action. 16, High MU Thoriated Tungsten filamentary heating structure. 17, Tungsten is classified among the metals. 18, Increases tungsten electrode life and reduces balling action. 19, Tungsten filament are used to radiate light. 20, Wear - resistant tungsten steel Case and strap. 21, The electrodeposition of nickel - tungsten alloy performs as instantaneous nucleation followed by three dimensional growth. 22, Lanthanum - tungsten electrode is the substitution product of thorium - tungsten electrode because of its freedom from radioactivity. 23, The tungsten ore inXingluokeng pertains to a symbiotic fine granite vein - type wolframite and scheelite deposit. 24, Another type of light bulb you may come across is the tungsten halogen bulb. 25, Specialty metals such as stainless steel, silicon electric steel,(http:///tungsten.html) alloys and tungsten still are produced in the area. 26, The metals probably include chromium, manganese, cobalt, vanadium, nickel, tungsten and tantalum. 27, As they ran over the pulleys, a slurry of sand or tungsten carbide was poured on the wire. 28, The illumination consisted of a total of 150W of tungsten lighting. 29, I have a wonderful play of light and shade, and the tungsten light gives a very similar effect. 30, Process of photocatalytic decomposition of methylene blue on cadmium sulphide was studied using cadmium sulphide nanoparticles as photocatalyst and tungsten as simulated visible light. 31, This paper covers the calibration method of tungsten - rhenium thermocouples using an optical pyromer as standtard instrument. 32, Using WF6 and H2 as raw materials, tungsten plate formed by powder metallurgy as substrate, the deformable tungsten ingots were prepared successfully by a hot-wire CVD experimental facility. 33, In the present study, tungsten oxide nanorods were prepared by a plasma arc gas condensation technique where a gas nozzle was introduced to provide blowing gas. 34, Experiments show that under the same conditions, the rate of penetration of Ultra-fine grain tungsten-penetrators is higher than tungsten heavy alloy penetrators . 35, Tungsten mineralization types in Yaoling zone are divided into quartz vein, greisen, altered granite and placer. 36, It also said that it was working to ensure that minerals used in electronics manufacturing, like tantalum, tungsten and gold, do not come from war-torn regions. 37, Due to its high melting point and low sputtering rate, the tungsten is considered as a highly promising candidate of plasma facing material (PFM) in nuclear fusion systems. 38, Edison's efforts to invent electric light bulb did not pan out until he used tungsten wires. 39, Refractory metal and cemented carbides: steel, metal steel, tungsten metal, crucible etc. 40, A tungsten tip received discharge treatment under a high voltage over 10?kV in a field-emission microscope (FEM). 41, Studies the possibility on improving trursmutative soil service life based on the tungsten alloy cast iron liner which was made from tungsten slag alloy. 42, The binuclear tungsten citrate complex was synthesized by the reaction of (NH4)2WS4 with potassium citrate, and characterized by IR and elemental analysis. 43, The results show that the tungsten railings glass-ceramics exhibts excellent properties. It is a new architectural decorative and wear-resisting, corr... 44, The hole injection layer contains tungsten oxide or molybdenum oxide. 45, Tungsten is a traditional dominant mineral in China, and the total production control system has been implemented for many years. 46, Several grains of tsumoite was found in Hongling deposit accrete with bismuthinite and bismuth, which is the first founding of this mineral in vein type tungsten deposit. 47, A glass or quartz tube has tungsten electrodes sealed in each end. 48, In ordinary chemical phase analyses of tungsten only tungstite, scheelite and wolframite are dealt with. 49, Features: imported tungsten steel, high abrasion resistance , anti - broken. Mainly applies to: acrylic and density wood cutting. 50, When grinding (pointing) thoriated tungsten electrodes, always use local exhaust and, if necessary, respiratory protection to prevent inhalation of dust. 51, Tungsten ( or wolfram ) : Metallic chemical element, of the transition elements, chemical symbol W, atomic number 74. 52, The Scandia doped tungsten body was applied in impregnated dispenser cathode and the effect of the improving matrix on the cathode characteristic was also studied. 53, Tungsten carbide welding rod is a raw material for the crane. 54, The only thing that stood a chance of piercing the frontal armour of the Tiger was the British 17 - pounder gun, a weapon that boasted a revolutionary discarding tungsten sabot round. 55, Tungsten STM tips made by electrochemical etching are always covered with a layer of oxide film, which greatly affects the quality of STM images. 56, Gas - filled lamp containing a tungsten filament and a small proportion of halogens. 57, Air contains oxygen, and the hot tungsten could burn in it. 58, The main mineral resources have a crystal, iron, tungsten, tin, manganese, potassium feldspar, quartz sand quality. 59, The tungsten and hafnium were analyzed by multi-elemental spectral lines average method and corrected by the matrix matching and background correction methods. 60, Scandia and rhenium doped tungsten powders were prepared by solid-liquid doping combined with two-step reduction method. 61, The general formula, cation site occupancy and its coordination number in the structure of tungsten bronze niobate crystals are discussed. 62, Cerium - tungsten and AIN ceramics pieces with high density were obtained by the hollow cathode plasma sintering. 63, Cast tungsten carbide powder is silver grey in outward appearance and multi - prism spray weldingspray coating. 64, To ensure the purity grade and flow rate of shielding inert gas, to use tungsten electrode activated with nanosized thoria are two better ways to decrease the erosion rate of electrode. 65, A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho -tungstate in hydrogen. 66, The samples of tungsten carbide were prepared from the blue tungsten trioxide and the ammonium paratungstate Separately. 67, Along with the oil prospecting and production, the existent drilling bit (steel and tungsten carbide tooth bit) was not effective in some complicated stratum. 68, The fabrication, hot-working and applications of tungsten and tungsten alloys are summarized both domestic and overseas. 69, Mineral exploration made important progress in . coal, uranium, iron, gold, silver, copper, nickel, zinc, lead, antimony, tungsten, molybdenum, vanadium, kainite and characteristic non-metal . 70, By using computer tomography (CT) instrument, the X-ray shielding property of nylon 6 composite with high tungsten concentration was investigated. 71, However, in view of plasma confinement and its boundary gas recycling, the investigation on the gas desorption behavior of plasma facing material for tungsten coating is very important. 72, The heating mechanism of hollow cathode effect plasma sintering cerium - tungsten alloy adobes are researched. 73, In addition, no XANES and UV-Vis characterization studies about the coordination of the surface tungsten oxide species on silica have been reported till date. 73, is a sentence dictionary, on which you can find excellent sentences for a large number of words. 74, The bremsstrahlung generated by the electron beam impinging the tungsten target and the interactions between the X-rays and the materials were simulated using the MCNP4C code. 75, Method of determinating of tungsten trioxide in artificial scheelite is described. 76, The process of the crystalline mother solution, ammonium paratungstate (APT) , through the macroporous strong-base resin D296, and the recovery of tungsten and ammonium chloride in it are studied. 77, Even with the air pumped out the bulb, the tungsten filament slowly vaporizes. 78, A series of cobalt platinum tungsten alloys were deposited with sodium tungstate and cobaltous sulfate as the main salts and citrate as the complex agent. 79, At the same time sales agent with tungsten carbide alloy PCB - drilling. 80, Properties of fine tungsten powder and fine tungsten carbide powder from violet tungstic oxide are studied. The result shows that the process of v... 81, Studies on the spallation behaviour for 93 tungsten alloy have been performed witha compressed gas gun and a manganin piezoresistance gauge technique. 82, The temperature field in welding HAZ was studied and analyzed. Welding heat curve was set up by argon-shielded tungsten arc welding experiment. 83, This Paper introduces the method of staining on dissolving tungsten ore test and its theoretical principle. 84, Electric arc burns stability, remove tungsten consumption and assuring welding quality the workpiece cleaning function. 85, Single crystals of sodium tungsten bronzes with cubic perovskite structure were grown by fused sale electrolysis. The crystals have a metallic conducting behavior. 86, The tip of specimen for FIM analysis is prepared by "thin layer" electropolishing. A Clean tungsten tip about 500 A radius was prepared. 87, It is described a filter (300) for at least partially compensating for an X-ray tube (10) the target angle heel effect and preserving the tungsten spectrum of the X-rays. 88, The reason why tungsten wire is easy to break in the silicon thin film deposition process by hot wire deposition method was explained. 89, The floatation tungsten concentrate is treated by acid pickling to remove phosphonium and carbonate, and its final concentrate is 70. 90, Paris Expo, at the Edison invented produced by the tungsten filament incandescent lamp. 91, A new type of argon tungsten pulsed arc welding machine has been introduced in this paper. 92, TIG(tungsten inert-gas) welding processes and A-TIG(A activating) processes of TC4 titanium alloy with FT-01 activating flux made in BAMTRI were investigated. 93, In particular, when the refractory metal silicide film is a tungsten silicide film, the concentration of Cu is preferable that it is in the range of 0.1 to 1.0 wt. %. 94, The meter features a 316L stainless steel body and internal wetted parts, with nickel-plated CD4MCU stainless steel turbine and tungsten carbide rotor shaft. 95, The electron microscopic thin crystal techniques are adopted by the authors to study the electron microscopic structures of the molybdenite from Dangping tungsten deposits. 96, In experiments, we used the 2793K halogen tungsten lamp to irradiate the detector of CCD143A and measured the values of photometry and radiometry. 97, In the system of sulfuric acid phenylglycollic acid cinchonine potassium chlorate, micro amount of tungsten in ammonium molybdate products has been determined by catalytic polarography. 98, So, we carried out with cyclopentadienyl molybdenum tungsten disulfide - based Synthesis and Characterization of. 99, It is reported that hard alloy scrap is treated by electroosmosis and electrolysis together taking sulfuric acid as electrolyte in order to recover cobalt metal and Tungsten Carbide. 100, Advances in tungsten carbide alkanes isomerization catalysts, including their preparation and the isomerization mechanism, were reviewed. 101, The results showed that copper occurs as chalcopyrite and enargite, tin occurs as cassiterite and custerite, and tungsten occurs as scheelite. 102, Nanometer tungsten nitride powders were synthesized as amm onium metatungstate by means of spray drying, calcination, milling and nitration in pure ammonia. 103, In this study, tungsten trioxide EC films were successfully prepared via sol-dip-coating method and sol-electrophoretic method using stable tungsten trioxide sol synthesized by tungstic acid. 103, 104, The catalytic activity of tungsten carbide was studied through hydrogenation of benzene. 105, Description is made of the present status of alkali autoclave process for tungsten metallurgy. 106, The method is characterized in that the material uses calcium nitrate, bovine serum albumin (BSA), diammonium phosphate, tungsten, silver, platinum and ammonia as raw materials. 107, With the further increase of laser power, the temperature of nanowires increased further at the same time, tungsten trioxide nanowires underwent a phase transition from monoclinic to orthorhombic . 108, Cemented carbides metal: Tungsten powder, carbonize tungsten, Cobalt powder, Molybdenum powder, pure tungsten, Cobalt nickel material, tungsten copper metal, etc. 109, We make an electron gun which consists of a tungsten wire heated by an electric current. 110, Tungsten is widely used in multi - level interconnection due to its excellent gap filling and anti - electromigration capability. 111, The vital part of the incandescent electric lamp is the tungsten wire inside the bulb. 112, The experimental results show that scandia distributed evenly on the surface of tungsten particles. 113, The field-activated pressure-assisted combustion synthesis (FAPACS) process was utilized to produce and densify tungsten carbides material from tungsten and carbon powders with different mole ratios. 114, In the paper, the practice are put forward for improving the financial - budget management of tungsten mines. 115, Effects of levitation melting and casting on solidification structure, mechanical properties and wearing capacity of tungsten alloy cast iron have been examined. 116, Tungsten alloys are materials with a high tungsten content and low amounts of NiFe or NiCu. 117, Through the detailed cost analysis of the tungsten mines, this paper puts forward the managerial practice by applying cost-volume-profit analysis. 118, Fourthly, using an infrared lamp or iodine tungsten lamp dry each time after brushing, applying or splicing again until it's dry but still sticky. 119, It is widely used to separate tungsten, stannum, niobium, other rare metal and noble metal ores. 120, Properties of fine tungsten powder and fine tungsten carbide powder from violet tungstic oxide are studied. The result shows that the process of violet tungst... 121, This paper describes the chlorination process of waste tungsten carbide powder. 122, Reliable and durable: the abnormal scrap rate is very less and the cost of maintenance is not expensive without easily damaged parts such as tungsten filament and body case etc. 123, The instrument consisted of a tungsten lamp as its source, an optical fiber for light transfer, a photomultiplier tube for detection and a digital multimeter for reading. 124, Modifications of the method of potentiometric titration with chromous chloride in thedetermination of tungsten and molybdenum have been described. 125, Application of solvent extraction process in tungsten hydrometallurgy is summarized. 126, It is preferable to use tungsten carbide of fine grain size for such build - up welding . 127, The deposit, refers to the stockwork sulphide tungsten deposit of porphyry type with associated gold which can meet the requirement of utilization. 128, The cathode was a Tungsten crucibleneedle with diameter 3 mm. 129, To bring your flash into the tungsten range of color for most ambient situations, you can use a Color Temperature Orange (CTO) filter over the flash lens. 130, External radiation from thoriated tungsten electrodes during storage, welding, or disposal of residues is negligible under normal conditions. 131, Lamp of low-pressure halogenate tungsten: The price is expensive, but enough of clear and light high quality illume is quits this one defect. 132, The elements and tungsten of raw ore are analyzed in Table 1 and Table 2. 133, In recent years,(sentence dictionary) some new methods about removing of stannum from tungsten are put forward. 134, Polyaniline - tungsten trioxide ( PANI - WO _ 3 ) composite film was synthesized on the surface of titanium electrode by pulse potentiostatic method ... 135, The tungsten bronze type solid solution systems, Sr _ ( 1 - x ) Ba _ xNb _ 2 O < ... 136, It is studied that most of tungsten in ore occurs in secondary psilomelane in the form of adsorbed ions. 137, Tungsten is a very hard, dense, silvery-white, lustrous metal that tarnishes in air, forming a protective oxide coating. 138, A new style fast heating infrared equipment, with tungsten halogen lamp and parabolic reflector equipped, was developed for heating metal samples. 139, Application:Raw material for hydrogenolysis tungsten powder, used for producing doped tungsten powder, tungsten bar, tungsten rod(), tungsten wire and W-base high density alloy. 140, Reserved resources of scheelite and wolframite and their distribution in China are presented in this paper. The current situation of exploitation of tungsten resources is discussed. 141, In many cases the recovery value of these other elements exceeds that of the tungsten. 142, High frequency directs the arc, cannot produce the phenomenon of clamping tungsten. 143, In this paper, WO3 thin film was deposited on glass substrate and silicon slice by DC reactive magnetron sputtering and using metal tungsten as target. 144, Ltd is a specialist in producing molybdenum, tungsten and their down - stream products. 145, For example, consider a typical 100 watt, 120 VAC light bulb with a tungsten filament. 146, Characteristics of Scandate cathodes with Scandia doped tungsten bodies have been investigated in this work. 147, The two body abrasion wear characteristic of Mn copper nickel alloy matrix cast tungsten carbide composite has been studied using high chromium cast iron as a reference material. 148, Cobalt - tungsten electrodeposit as copper barrier was presented in the paper. 149, The experiences in trouble shooting of the deuteron and tungsten lamps in the service of P E 5000 atomic absorption spectrophotometers were demonstrated in this paper. 150, The drawing capstans are of step-cone structure, the surface of which is spray-coated with tungsten carbide. 151, Rapid spectrophotometric determination of tungsten in alloy steel with stannous chloride reduction - ammonium thiocyanate is set up. 152, The new process of calcine for ammonium paratungstate to tungsten trioxide by microwave was investigated. 153, Tungsten occurs as scheelite stringer, dispersion mierograined scheelite and absorbed ions. 154, Analyses with XRD and XPS were made for the r. f magnetron sputtering deposited carbon film on tungsten substrate before and after Ar and N ions irradiation. 155, Assemble die adopt tungsten steel die, guide wheel have defend jump wire device. 156, Spherical tungsten powder produced by plasma atomization technique is described. 157, A new method for seam tracking using image centroid in gas tungsten arc welding is presented. 158, The selectivity, the chemical and mechanical function's matching, the storage of the slurry and post CMP cleaning ULSI inlaid tungsten CMP have been studied in this article. 159, Suitable for steel, titanium, tungsten steel, alloy, ceramics, copper and silver material. 160, Our main products are Silicon Carbide, Alumina Ceramic, Tungsten Carbide, and Carbon - Graphite Seal Rings. 161, Manufacturing of alloy cast iron grinding ball by means of composite modification of tungsten slag is a feasible way due to its simple process, low cost and good product quality. 162, I plant of the chromium oxide , alumina ceramic coating and has a tungsten carbide metal-resistant coating wear, corrosion resistance, high temperature, and other fine performance. 163, Tungsten is expected to become next strategic metal under state focus rectification to solve the problem of long-term blind competition. 164, In 1928 Joan Crawford and Johnny Mack Brown danced under the newly perfected tungsten lamp in the flapper classic,() Our Dancing Daughters. 165, Mineral resources are mainly tungsten ore, lead ore, zinc, and clay mineral - based. 166, Tungsten steel ( hard alloy ) forming machining: tungsten forming grinding, cylindrical grinding. 167, Among the high temperature nonferrous metals are molybdenum, niobium, tantalum, and tungsten. |
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