起泡剂是能够发生化学反应并产生气体的物质.Foaming agent is a chemical reaction can occur and produce gases.运用GC-MS剖析两起由起泡剂引发的选矿事故.Two mineral processing accidents resulted from frothers are analyzed by means of GC - MS....
Whales, seals, penguins, and turtles have flippers.鲸 、 海豹, 企鹅和海龟均有鳍形肢.It is plainly cruel to keep turtles as pets.显然，养海龟作宠物十分残忍。The ocean was filled with turtles and fish, ready for the net.海洋里鱼鳖成群, 张网可得....
The waiter offered him red wine or white wine with his meal...侍者为他端上佐餐的红葡萄酒或者白葡萄酒。He raised the roof at the conference when he sang his own version of the socialist anthem, The Red Flag.他演唱自己改编的社会主义赞歌《红旗颂》时，声音穿透了会场的屋顶。Sh...
几位高官相当公开地对和平谈判表示出不屑。Several leading officers have quite openly scorned the peace talks.他越来越公开地谈他的问题.He speaks more and more openly about his problem.格雷斯这样公开地追求那个小伙子,真应该感到害臊.Grace ought to be ashamed of herself , hurling ...