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....
Furthermore, Mr Obama's dextrous attempts to avoid provoking the Chinese were heavily censored.这还不算, 奥巴马试图避免激怒中方的机敏措辞也受到了严格审查.This paper deals with thecalculation problem of the boundary of manipulator dextrous work...
Finely shred the carrots, cabbage and cored apples.将胡萝卜、卷心菜切成细丝并给苹果去核。She cored the apples.她挖掉苹果的核。The oldest sediments cored to date are about 150 million years old.到目前为止取出的最老沉积物的岩心是大约1.5亿年以前的生成....
Any escape, once it's detected, sets off the alarm.一旦发现有泄漏，警报就会响起来。He returned to the airport to find his car alarm going off.他回到机场时听到自己的汽车报警器响了。An alarm links the police station to the divisional headquarters.在部门总部...