The carbon is electrophilic centre.碳是亲电的中心.It will become deepen to the students'recognization in mechanism of Aryl electrophilic substitution.这些问题的讨论将深化学生对芳烃亲电取代反应机理的认识.The rate constants of radical and electrophil...
声迹与动作不同步。The sound track did not synchronize with the action.该影片画面与声音不同步.The film does not synchronize with sound.他们来回摇摆，基本上与音乐同步。They swayed back and forth, more or less in sync with the music....
He walked around the garden and pronounced himself satisfied.他绕着花园走了走，说自己很满意。The aquifer which had once fed the wells was pronounced dry.曾为水井供水的蓄水层正式宣告干涸了。"Getting nowhere fast," pronounced Crosby, "that's what we&#...
可延长锌锅使用寿命, 降低锌渣生成量,经济效益显著.Then the life of galvanized pot is increased, the slag reduced and economic benefit obtained.热镀锌行业每年产生5万余吨的锌渣.Over fifty thousand tons zinc slag is produced in hot zinc plated industry every yea...
We are forwarding our new samples.现给你寄上我们的新样品.We are forwarding you a list of the store's latest men's clothing.我们现寄去我店最新男装目录.There must be no delay in forwarding the goods.发送货物不得延误....