氦气替换法,helium replacement method
1)helium replacement method氦气替换法
1.Discussion on the principle and measurement ofhelium replacement method for testing true relative density氦气替换法测定煤真相对密度的原理与测试
英文短句/例句
1.Discussion on the principle and measurement of helium replacement method for testing true relative density氦气替换法测定煤真相对密度的原理与测试
2.The method of on-line analysis of gas in helium system for reactors氦气系统爆炸性气体的在线测量方法
3.Impact of Helium Impurities on Intermediate Heat Exchanger Materials氦气杂质对中间换热器材料的影响初探
4.OPTIMAL THERMAL DESIGN OF HELIUM DEWAR WITH LIQUID NITROGEN AND BOIL-OFF HELIUM COOLED SHIELDS具有液氮和蒸发氦气冷却屏的液氦容器的最佳热设计—能量优化法
5.The synthesis of DPC by transesterification is a novel method substituted for conventional phosgene method.酯交换法合成碳酸二苯酯是替代光气法的新型绿色合成工艺。
6.DETERMINATON OF TRACE He,Ne AND Ar IN GAS SAMPLES BY IDMS同位素稀释质谱法测定气体样品中微量氦氖氩
7.Discuss on Domestic Legislation Protection for Helium Gas Resource关于我国氦气资源立法保护问题的建议
8.The output of light and heat of the Sun requires that some 600 million tons of hydrogen be converted into helium in the Sun every second.太阳光和热的产生每秒钟需要将6亿吨氢气转换成氦。
9.Gas Chromatographic Analysis of Hydrogen and Helium for Knowledge of Underground Gas of Coal;煤层瓦斯中氢气和氦气的气相色谱分析方法与应用研究
10.Helium-charged Al films are prepared by direct current (DC) magnetron sputtering with a He/Ar mixture.采用氦氩混合气氛下直流磁控溅射沉积方法制备含有氦原子的金属铝膜。
11.A calculation model of the coefficient of heat transfer between gas and stave body and inlaid refractory is built based on the substitution method of boundary condition.基于边界条件替换方法建立了高炉冷却壁本体和捣打料与炉气之间的换热系数计算模型。
12.Replace the cylinder outlet seal and valve cap.替换钢瓶排气口密封和阀门帽。
13.high pressure helium gas scintillation counter高压氦气闪烁计数器
14.Helium and neon are inert gases.氦和氖为惰性气体。
15.You tie a helium balloon to your head and hope it acts like a mana shield.你将一个氦气球系在头上，指望它能起魔法护罩的作用。
16.On Methods of Substitution for Middle Term and Its Transcendence of Traditional Methods of Categorical Syllogism论替换中项法——对三段论方法的新探索
17.Unable to move the replacement file to the file to be replaced. The file to be replaced has retained its original name.无法将替换文件移到要被替换的文件。要被替换的文件保持原来的名称。
18.Unable to move the replacement file to the file to be replaced. The file to be replaced has been renamed using the backup name.无法将替换文件移到要被替换的文件。要被替换的文件已被重新命名为备份名称。
相关短句/例句
helium-displacement method氦置换法
3)helium heat exchanger氦气换热器
4)He-reference method氦气基准法
5)helium equilibrium method氦气平衡法
6)helium-to-boiling-water heat exchanger氦气-沸水换热器
延伸阅读
氦3-氦4稀释制冷分子式：CAS号：性质：3He-4He混合液在0.867K时出现界限分明的上下两相，上相3He含量高称浓相，下相4He含量高称稀相。稀相中4He的熵比3He的熵小得多，浓相中4He的熵又比稀相中3He的熵小得多。3He从浓相进入稀相或从稀相中抽走都会发生降温。用泵把3He-4He混合室与一个蒸发器和一个冷凝器连接起来就组成稀释制冷器。用抽气泵不断地把蒸发器中的3He抽走，蒸发过程中3He带走大量热量。从蒸发器中抽走的3He经冷凝器液化后再回到混合室。用此法可获得0.0035～0.0055K的超低温。
