氰氨化钙是毒性物质,对皮肤有刺激性.Calcium cyanamide is poisonous and irritating to the skin.叠氨化银不溶于水或硝酸.Silver azide does not dissolve in water or in nitric acid.氨化作用、同化作用及滤池的硝化作用是氮的主要转化形式.Ammonification, nitrification and nitrogen assi...
柯林斯·哈维尔公司打算出版一本帕斯捷尔纳克的小诗集。Collins Harvill had it in mind to publish a short volume about Pasternak.哈维尔认为,这说明那个人表示顺从.Mr Havel argued that it represented a declaration of conformity.相信我, 我比哈维尔-马斯切拉诺更优秀.Trust me, am better ...
这种雄鸟在与雌鸟交尾以前要跳一种交欢舞.The male bird performs a sort of mating dance before copulating with the female.雌螳螂在与雄螳螂交尾后,经常吃掉对方.The female praying mantis often eats the male after they mate.原型意义而言, 玄武含有龟蛇交尾与蛇体自环的意义.To prototype, ...