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...
These facts of responsibility are an anthropological datums - varied and multiform.这些道德事实是一种人类学资料 —— 性质不同,形式各异.It is the most difficult of all anthropological data on which to " draw " the old Negro.在所有的人类学资料中,最困难的事莫过于 “...
他们热诚地欢迎我们.They gave us a hearty wel - come.她不停地蠕动着双唇热诚地默默祈祷着.She kept moving her lips in silent fervent prayer.他们却热诚地同意这行动.They enthusiastically approved the attempt....
他有10万美元的人寿保险,如果他先去世, 他的妻子将得到这笔钱.He has $ 100, 000 life insurance, which his wife will receive if he dies first.他每年给妻子$100美元购买衣服.He allows his wife $ 100 a year for clothes.他和妻子一年的总收入超过25万美元.He and hiswife earned a combin...
A timeless comic actor—his simplicity and his apparent ease are matchless.作为喜剧界的常青树——他的简单淳朴与自然大方无人能及。There is a simplicity about the interior which comes close to blandness.室内布置得很简单，几乎有点平淡无奇。Using a credit card to pay fo...
Mines have been scattered in rice paddies and jungles, maiming and killing civilians.地雷遍布稻田与林间，很多平民被炸死或炸成重伤。Forests and jungles have thick vegetation.森林和热带雨林中有茂密的植被.The Ho Chi Minh Trail was hacked through jungles coveri...