The gentlest of her caresses would contort his already tense body.她最温柔的爱抚会让他已然紧绷的身体变得扭曲。Dart, who had at first been very tense, at last relaxed.起初，达特非常紧张，最后终于放松了下来。He was quiet , reasonable , and only a little tense.他言语冷...
The first catalytic converters were called conventional oxidation catalysts.最初的转化器叫做常规氧化催化器.Many processes that are essential to the chemical industry use heterogeneous catalysts.很多重要的化学工业过程就是使用多相催化剂的.Catalysts that lowe...