氯苯 、 溴苯和苯硫酚化合物的谱带出现于低限附近.In compounds such as chorobenzene, bromobenzene and thiophenol it lies close to the lower limit.方法以3-甲氧基苯硫酚和对甲氧基 - 苯乙酮为原料经溴化、烃基化、环合重排排制得目标产物.Methods: The target compound was synthesized through b...
He asked his mother to send it by registered mail.他让他妈妈用挂号邮件寄。Is the domain name already registered or still available?该域名已经被注册还是仍然可用？Thousands have registered with unemployment offices.已有数千人在失业管理处作了登记。...
There are five big fish in the crock.在瓦罐里有五条大鱼.The crock isfilled with wine.缸里盛满了酒.But you don't want some old crock like me.但你不需要像我这样的老家伙。...an earthenware bread crock.陶制面包罐...
The taxi drivers' association is urging its members, who can work as many hours as they want, not to overdo it.出租车司机协会劝告那些工作时长不受限制的会员不要疲劳驾驶。You do need a staff - so long as you don't overdo it.办事人员确实是需要的,只是不能搞得...