查询词典 acetylene

This paper deals with how thermal inertia and adiabatic effect of an object welding And what flame should be applied in oxy-acetylene welding with silver-copper solder and the high temperature area of flame are also discussed then the effect of free oxygen and free carbon on welding is analyzed.

探讨了物体的热惰性和绝热效应对焊接的影响，讨论了采用银铜焊料进行氧－乙炔焊时应该运用的火焰和火焰的高温区域。

In this paper,the technological calculation of a packed bed reactor of the gasphase synthesis of vinyl acetate via the acetylene method is presented,and some factors af-fecting the operations of a reactor are discussed.

介绍了乙炔法气相合成醋酸乙烯固定床反应器的工艺计算，并对影响反应器正常运行的各种因素进行了讨论。

The reaction mechanism,process,operation conditions and main technical indexes for the synthesis of vinyl chloride from acetylene were introduced briefly as well as the specification and preparation method of mercuric chloride catalyst s.

简单介绍了乙炔法合成氯乙烯的反应原理、工艺流程、操作条件和主要技术指标，以及氯化汞催化剂的规格和制备方法，讨论了氯化汞催化剂的缺陷，总结了在减少汞流失方面对氯化汞催化剂进行改良的进展情况。

Group A = atmospheres containing acetylene; Group B = atmospheres containing hydrogen; Group C = atmosphere containing ethyl-ether vapors, ethylene, or cyclopropane; Group D = atmospheres containing gasoline, hexane, naphtha, benzene, butane, propane, alcohol, acetone, benzol, lacquer, solvent vapors or natural gas.

组A =大气中含有乙炔；组B =大气中含有氢；组C =大气中含有乙醚蒸汽，乙烯，或环丙烷；组D =大气中含有汽油，乙烷，石脑油，苯，丁烷，丙烷，酒精，丙酮，不纯苯，漆，溶剂蒸汽，或天然气。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。