Isomerization occur during bromine reaction, that is mean secondary allylic configuration changes into primary allylic configuration.在溴化反应过程中存在分子结构重排, 即溴代仲位烯丙基构型向溴代伯位烯丙基构型发生转化....
There have been at least thirteen previous attempts to reach the North Pole unaided.之前至少已经有过13次想独立到达北极的尝试。Gross crystalline imperfections like twinning are apparent to the unaided eye.粗的晶体不完整性,如孪生体可用肉眼看出.That comet is in...
把糖掺入黄油然后搅拌至滑软细腻。Blend the butter with the sugar and beat until light and creamy.同时，把碗置于微沸的水上，将白巧克力放入碗中使其熔化。Meanwhile, melt the white chocolate in a bowl suspended over simmering water.磨碎一汤匙鲜姜，放入平底锅。Grate a tablespoonful ...
The third chapter analyses the relation between dramatization and impersonal lyricism.第三章分析戏剧化与“非个人化抒情”的关系.In the conclusion, the inadequacy of poetic dramatization is pointed out.在结语中指出诗歌戏剧化的一点不足.The incident seemed to ...
若无交通阻塞,我们半小时后可到达.We should arrive in half an hour, barring hold - ups.最多两小时便可到达那里.It will take two hours at most to get there.沿着这条路走,你就可到达那家旅馆.Follow the road until you come to the hotel....