The reaction is intramolecular and hence fast and clean.此反应属分子内反应,因而快速且干净利索.The prepared random SBR has uniform inter ? and intramolecular composition distribution.该体系合成的丁苯共聚物具有均匀的分子内和分子间分布.Application of samarium diiodi...
I think that the vice president was in the loop.我认为副总统是局内人。The vice-president seems to have a good working relationship with the president.副总统似乎与总统有着良好的工作关系。His vice president also had to resign in disgrace.他的副总统也被迫不光彩地辞...