您要查找的是不是:
- rectification under vacuum 减压精馏,真空精馏
- After microtomy the sulphur is sublimed away under vacuum. 在完成切片后,可在真空下将硫升华除掉。
- Brazing of stainless steel under vacuum or protective atmosphere. 不锈钢真空或保护气氛钎焊。
- Resin was degassed using a vacuum and the winding carried out under vacuum. 树脂用真空脱气,并在真空下进行缠绕。
- Brazing of copper and nickel under vacuum or reducing protective atmosphere. 铜和镍的真空或还原保护气氛钎焊。
- Sym-triazole is synthesized by reaction rectification under the temperature of cyclical reaction. The yield is 96%. 叙述在环化反应温度下,用反应精馏法合成均三唑的方法。收率可达96%25。
- Usually in polyethylene-aluminnum composite bags packed under vacuum. 通常为铝塑复合包装袋,真空式充氮气包装。
- Heavy wall, translucent Buchner flasks, suitable for use under vacuum. 为半透明之厚壁过滤锥形瓶。
- Resin was degassed using a vacuum and the winding carried out under vacuum . 树脂用真空脱气,并在真空下进行缠绕。
- Do not energize under vacuumed condition. 在真空状态下请勿通电;
- Plastics piping systems - Systems for hot and cold water - Test method for leaktightness under vacuum. 塑料管道系统。热水和冷水系统。真空密封性的检验方法。
- Some questions on process designment and project practice of the miscella evaperation under vacuum are described. 探讨了混合油负压蒸发二次蒸汽利用工艺设计和工程实践中应注意的几个问题。
- The carriers in the material can be characterized by properties in many ways comparable to those of free electrons under vacuum. 这种材料中的载流子,许多特性都差不多可用真空中的自由电子的特性来表征。
- Taking soybean oil as raw material,the vehicle of soy ink was synthesized by heat polymerization under vacuum technology. 以大豆油为原料,通过真空负压工艺下的热聚合反应合成大豆油墨连接料。
- For cylinders equipped with residual (positive) pressure valves, one evacuation under vacuum at 150 millibar is sufficient if the pressure is positive. 对于装有剩余压力阀门的气瓶,如果瓶内剩余压力是正压,把它抽真空到150mbar以下就可以了;
- Containers sealed under vacuum should be tested for maintenance of that vacuum after an appropriate, pre-determined period. 在真空条件下密封的容器,应该在适当的预先确定的日期后检查真空保持度。
- Main microorganisms of chilled mutton were incubated with selective agars, and initial microflora and their changes under vacuum were analyzed. 摘要本文采用选择性培养基对冷却羊肉中的主要微生物进行了选择培养,分析研究了真空条件下冷却羊肉的菌相消长规律。
- The best yields are obtained if the ether solvent is distilled from the Grignard under vacuum and replaced with hydrocarbon solvent, such as benzene. 如果用碳氢化合物溶剂替代在真空条件下从格林尼亚试剂中提取的空气溶剂,这将获得最大的产出。
- The adsorbed nitrogen is released from the zeolite by dropping the pressure to a lower level (often under vacuum)during the PSA/VSA process. 在PSA/VSA过程中,通过把压力降到更低的水平(通常在真空之下),可以把吸附的氮从沸石中释放出来。
- The carbon thread evaporation process developed by BAL-TEC requires a special carbon thread that flash evaporates under vacuum conditions. 由 BAL-TEC 所发展的碳线蒸镀制程系利用一特殊的碳线于真空状态下加热蒸发。
- 今日热词
-
- 深远海浮式风电平台 - deep-sea floating wind power platform
-
- 京雄高速公路 - Beijing-Xiongan expressway
-
- 农业及相关产业增加值 - the added value of agriculture and related industries