Under the optimum condition the yield of isopropyl cyclopropane carboxylate is 92 %.在最佳反应条件下,环丙烷羧酸异丙酯的产率达92%.Isopropyl p - hydroxybenzoate was synthesized with toluene - p - sulfonic acid as catalyst.以对 甲苯 磺酸为催化剂合成了尼泊金异丙...
木棉花的绽放预报着早春的到来.The kapok is in blossom that heralds the early spring.木棉花也具药疗价值.The kapok flower a medicine that treats value too.木棉花 是广州的市花.Yongxian : Kapok is the city flower of Guangzhou....
Farming, quarrying and other local industries have declined.农业、采矿业以及其他地方工业都已陷入衰退。Township enterprises in trade , in commerce, mining, coking, quarrying, food service industry.乡镇企业有商贸 、 采煤 、 炼焦 、 采石 、 饮食服务业.In addition, t...
That magazine usurped copyrighted material.那杂志盗用了版权为他人所有的素材.Henry IV usurped the throne of England.亨利四世篡夺了英国的王位.Pit - bull conservatives harbor the suspicion that their mission has been usurped by unbelievers ( James Wol...
The emphasis is swinging away from simply finding cures for illness to ways of preventing illness in the first place.重点正从简单地对症下药转移到先期预防的方法上来。Habit cures habit.新风移旧俗。Both drugs slow the progression of HIV, but neither cur...
He evinced a strong desire to be reconciled with his family.他表现出与家人和好的强烈愿望。His conversation evinced great courage.他的谈话显示了很大的勇气.He evinced his desire to go abroad.他表示了出国的愿望....