Hexadecyl octyl dimethyl ammonium bromide and hexadecyl decyl dimethyl ammonitim bromide were synthesized.合成了十六烷基辛基二甲基溴化铵和十六烷基癸基二甲基溴化铵两个新型杀生剂.In this paper the origin and development of octyl and decyl glycerate was intr...
To burn one's bridges is to commit oneself to an irreversible course.破釜沉舟,就是选择一条不可回头的道路.Double - wall steel cofferdam is the important facility of bridges deepwater foundation.双壁钢围堰是桥梁深水基础施工的重要设施....Venetian canals ...
a silence punctuated only by the occasional sniff from the children只有偶尔被孩子们吸鼻子的声音打破的寂静Have the Press got a sniff yet?...新闻界嗅到了一点消息没有？But really, what harm could it possibly do to pop down there and just sniff around?不过说真...
他们所谓的回答不过是表示承认的咕哝罢了。Their replies were no more than grunts of acknowledgement.“我现在不能回答你，”他闪避道。"I can't give you an answer now," he hedged.两个历史问题——你可以随便回答。Two historical questions — you can answer them how you like....
冷漠的礼仪是他唯一的 护身符.The chilling courtesy was his only armo ( u ) r .“ 我亲爱的朋友, 在这城市的生活里我有一张护身符呢!'My dear friend, I have a charmed life in this city.然而, 事实上, “ 提案 ” 一词本身并不具备护身符般的特殊意义.In fact, however, there is no talisman...