单词 | Melting point |
例句 | 1. When the temperature reaches melting point, the metal runs off as a liquid and flows into special modules. 2. What is the melting point of melamine? 3. The melting point of iron was exorbitantly hot. 4. It shows that as pressure increases the melting point decreases slightly. 5. The high melting point of carbon may also be significant. 6. The melting point increases with depth in the Earth because of the increasing pressure. 7. This shows the effect of pressure on the melting point of ice. 8. The main difference between the two is the melting point of the solder. 9. The melting point of ice is 0. 10. In contrast, iron has a much higher melting point. 11. Low melting point with good flowing property. 12. The thermal properties include freezing point, melting point, the heat of fusion and thermal stability during the phase change process are investigated. 13. 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. 14. All high melting point phases vanish. The solid solubility increases greatly. 15. However, it also had drawbacks such as higher melting point, poor solubilities, difficulty processing, weaker adhesion, higher hygroscopy, higher water absorption and higher cost etc. 16. The melting point is a mains quality index of heat melts adhesives. And the bonding properties are influenced by the melting point and melting range. 17. The melting point of the blend decreased and crystallin temperature rose with the increase of the TPU content in the blend. 18. Some optimum processing parameters about manufacturing the low melting point polyester also be obtained. 19. But it has low melting point and sintering point, when it is used to extinguish a fire, it can rapidly decompose to form a layer of film, which can cover the surface of comburent and make the fire . 20. The unknown compound is matched with a known compound with the same melting point. 21. By mixing metals it is possible to make alloys which are tougher and have a lower melting point than the individual metals. 22. Nonnatural amino acid 3 (4 thiazolyl) D, L alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR, NMR, elementary analysis and melting point. 23. Structure of the product is proved right through the measure of melting point, the element analysis and the infrared spectrum analysis. 24. The uniformity of thin melt-blown webs which is produced of low melting point copolyamide by melt blowing line with accessory device was tested by weight method. 25. It was proved that four types of lipase reacting with palm stearin was not significantly lower the melting point of palm stearin in the initial biological enzymatic method. 26. A method has been developed to measure the carbon distribution and content of microcrystal wax with high drop melting point. 27. The metal osmium is very stable in the air, the melting point is 2700 degrees Celsius, it does not dissolve in the ordinary acid, will not be corroded in the aqua regia. 28. So platina is like a diminutive of silver, but we now know that platinum is far superior to silver It is far more noble. It has a higher melting point, a higher chemical inertness, a fantastic metal. 29. The effect of plasticizer , relative molecular mass of copolymer and amount of comonomer on melting point of polymer was studied. 30. In this article, the author expounds the influence of molecular force on such physical property as melting point, boiling point and the solubility from the theory and by setting many real examples. 1. When the temperature reaches melting point, the metal runs off as a liquid and flows into special modules. 31. Since glass has no sharp melting point, most types can be shaped while hot and plastic by many techniques, mostly blowing or molding. See also volcanic glass. 32. It determines to be the structure of oxalic acid by IR spectrum and melting point. 33. The thixoforming is suitable for the controlling semi - solid forming of and steel with high melting point. 34. Furthermore, it can be concluded that an active viscid membrane and a high melting point constituent which can fix viscid membrane are the esse. 35. The melting point of solid oxygen, is - 218.4? ? C. 36. transparent liquid, with pungent smell, consistency : 1.049, melting point: 16.7℃, boiling point: 118℃. Amalgamate with water, ethanol and aether. 37. The low temperature eutectic mixtures such as anorthite and gehlenite are easily formed in calcium compounds at high temperature, which will remarkably decrease coal ash melting point. 38. The melting point of five standard samples(vanillin, etc) have been measured precisely by DSC and capillary tube, respectively. 39. It is harder than PE and has a higher melting point. 40. The erosion of metals varied depending largely on the melting point. 41. Melting point and decomposition temperature of thses germanic compounds have been determined by thermogravimetry. 42. A new kind of latent curing agent for epoxy resin, the dicyandiamide modified by m-Toluidine was synthesized under different conditions. The product was characterized by melting point, IR spectrum. 43. Unmelted gels have the same melting point as the surrounding resin, but remained colder than the average melt temperature. 44. To solder(two pieces of metal) together using a hard solder with a high melting point. 45. The physicochemical properties of this dipeptide were identified with melting point determination, amino acid analysis, elements analysis and MS and its purity was determined with HPLC. 46. The t-processing demonstrated that DSC can replaces conventional capillary tube to measure the melting point and offers experimental basis for developmental application of DSC. 47. The product was identified by oscillopolarography, infrared spectrometry and melting point test. The purity of 4-picolinic acid determined by the oscillopolarography was about 97.7%. 48. A silver solder, placed between the segment and the core, is heated above the melting point to bond the segment to the core. 49. The melting point of the fiber was decreased and the breaking strength and birefraction were decreased to a minimum first- ly and then incr. 50. The apparatus is calibrated using appropriate substances of known melting point. 51. RESULTS Chemical structure of the product was confirmed by melting point and element analysis. 52. High melting point pump: a high melting point in selection of easy crystallization of the liquid. 53. Ethenzamide after recrystallization with ethanol, their formula and structure were characterized by melting point determination, IR and HNMR spectroscopy. 54. Results The melting point of the lidocaine-dodecanol binary eutectic system was markedly lower than that of pure lidocaine. 55. The melting point of Er : LCB crystal is about 1048℃. 56. The performances of three kinds of gels were compared by the experiments of viscosity, gel intensity, syneresis rate, adhesive power[/melting point.html], gel freezing point as well as melting point and so on. 57. Palm stearin was modified by chemical method, physical mixing method and biological enzymatic method so that the melting point of palm stearin was lowered. 58. You will also characterize the semicarbazone by melting point determination. 59. The flux has advantages of appropriate melting point , good fluidness and good conductivity . 60. The chromatographic determination results of crude ammoniates conformed to melting point data. Ammoniate of high purity possessed high melting point. 61. The rheology properties of polymer filled with lower melting point dual component metallic alloy were studied by Hakke rheometer. 62. It bases on linear correlation between ablation and sum of daily mean temperatures above melting point, the cumulative positive temperature, during a period. 63. Therefore how to product PES with ideal melting point are concerned by every production companies. 64. They characteristic of low melting point, low vapor pressure, adjustable acidity,[http:///melting point.html] strong solubility and high viscosity. 65. Characteristics Good melt, controlled viscosity, low melting point, good workability for high - cycle. 66. The semi - Solid Forming technique of low melting point alloy has been used in commercial production. 67. Dioscin, a white sheet crystal isolated from crude saponins, was identified by TLC, and melting point. 68. The DSC curves measured from the experiment of the standard sample indium and stannum recommended by NBS are accorded with the melting point of sample. 69. The overall yield was 38.3 % and the melting point was 131 - 133 jas. 70. Tr ait: red crystalline powder, acetone soluble, water fast , melting point greater than 145 ℃. 71. One is to form compound with low melting point , the other is to refine eutectic cluster. 72. The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced. 73. For pure substances, the point is the same as the melting point. 74. The melting point was measured by differential scanning calorimeter ( DSC ) . |
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