This reaction, called the Hofman elimination, is quite analogous to the dehydrohalogenation of an alkyl halide.这个反应称为Hofman消除反应, 它很像卤代烷的脱卤化氢反应.The company is in a position closely analogous to that of its main rival.该公司与...
煤的需求下降了，煤价也相应下跌。Demand for coal is down and so are prices.专家说以目前的贱价出售根本不划算。Experts say it's just not worth selling out at current fire-sale prices.她说这么大的房子现在就是这个价。She says that's the going rate for a house this...
你在标签上涂胶了 吗 ?Have you gummed the labels?在使用拉伸聚丙烯薄膜覆膜时,必须在膜上涂胶.In the use of plastic mulch for BOPP film at prbroin gelatinize.涂胶机固化剂系统,为全封闭系统,杜绝了空气的混入.The curative agent system is completely closed and air proof....