This reaction, called the Hofman elimination, is quite analogous to the dehydrohalogenation of an alkyl halide.这个反应称为Hofman消除反应, 它很像卤代烷的脱卤化氢反应.This paper discussed three methods of producting vinyl etherspreparation from...
Barras broken the icy silence.巴勒斯打破了互不友好的沉默.In the evening, Barras and Jennings went down and began to explore the old workings.黄昏时分, 巴勒斯和詹宁斯来到井下,开始仔细察看老矿区.His personal popularity was more important to Barras than the mi...
It was an Alexandrian ship with the figurehead of the twin gods Castor and Pollux.这船以丢斯双子为记,是在那海岛过了冬的.King is just a figurehead; it's the president who has the real power.国王仅仅是挂名的首脑, 总统才真正握有实权.The queen is only a fi...