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.
煤被干馏后剩下固体残余物:焦炭.Coal is destructively distilled leaving a solid residue, coke.泥煤焦油的性质和由木材干馏所得到的焦油的性质相似.Peat tar has similar properties to the tar derived from the destructive distillation of wood.干馏段: 采用优质高炉粘土砖砌筑,内置中心管.P...
Carruthers had been gored by a rhinoceros.卡拉瑟斯被犀牛顶伤了。Is goin'to work for Carruthers.要去给卡路塞斯干.Mr Carruthers was never marked out stardom.卡拉瑟斯绝不是注定要当明星的....
他强烈批评那些无视莎士比亚的自诩为教育专家的人。He fiercely criticised self-styled educational experts for ignoring Shakespeare.莎士比亚笔下的女性角色在创作之初是打算由男性来扮演的。Shakespearean women's roles were originally written to be played by men.泰晤士电视台宣布重播《班...