此反应属分子内反应,因而快速且干净利索.The reaction is intramolecular and hence fast and clean.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.The prepared random SBR has uniform inter ? and intramolecular composition distribution.构象的变化改变了分子内的螺旋方向,因此,旋光方向随之改变.S...
The call-up of National Guard and reserve units begun in late August.国民警卫队和预备役的征兵工作8月下旬开始。Playing for the reserve team is a totally different kettle of fish.作为替补参加比赛完全是两码事。These front-line defences are backed up by armou...
Mr Thomas was taught by the Catholic nuns whose school he attended.托马斯先生是在天主教修女创办的学校接受的教育。It was an actor whose name escapes me for the moment.那个男演员的名字我一时想不起来了。He is a veteran parliamentarian whose views enjoy widespread...