在这种情形中,有两种几乎不能互变的变态.There are two almost non - interconvertible modifications.酮及烯醇互变是互变作用最普通的现象, 它们都是真实的化学实体.Keto - enol tautomerism is the most common tautomery phenomenon. Keto - enol themselves are the real chemical s...
Zeneca was at last demerged from its parent firm, ICI.捷利康公司终于从其母公司帝国化工集团中分离了出来。OFDM system tends to damage the orthogonality for ICI.OFDM的频谱正交性容易受到ICI的影响被破坏.For Akzo Nobel, the reasons for buying ICI are clear and compel...