We put the dog in kennels when we go away.我们外出时把狗寄养在养狗场。The guard dog was now in kennels as it was not aggressive...这条看门狗不好斗,因此正在养狗场受训。He left his dog in a kennels when he went on holiday.他外出度假时把狗交给养狗场照管.The guard dog wa...
聚丁二烯经一系列反应转变成丙啶基化合物 ( 聚丁二烯亚胺 ).Polybutadiene is changed to an aziridinyl compound ( polybutadieneimine ) by a series of reactions.丁二烯的衍生物,用于聚合制成氯丁橡胶.A synthetic rubber made from the polymerization of butadiene sodium.利用哈...