In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.Polyurethane demulsifier for crude oil were prepared from polypropylene glycol, xylene, toluenediiso - cyanate...
Responsibility: - In charge of all mechanical manipulations in CMA workshop.职责: 负责CMA车间的所有机械操作.CMA algorithm of Bussgang algorithms is the emphasis.重点分析了Bussgang类盲均衡算法中的CMA盲均衡算法.A modified multitarget blind beamforming a...
She fancied she and Carrie were somewhere beside an old coal - mine.她梦见她和嘉莉不知站在哪个旧矿井的旁边.We decided to open out a coal mine near the city.我们决定在城市附近开发一煤矿.The men in the coal - mine were asphyxiated by the bad gas.煤矿坑里的工人们为...
When the judge summed up, it was clear he wanted a guilty verdict...当法官作结案陈词时，他明显想作出有罪裁决。One voter in Brasilia summed up the mood — "Politicians have lost credibility," he complained.一位巴西利亚的选民将人们的心情一言概之——“政客们已无信誉可言”，他抱怨道...