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...
他有那种难以言表的特质,体现出他是专业而非业余的。He has that je ne sais quoi that distinguishes a professional from an amateur.职业高尔夫球员通常胜过业余的.A professional golfer usually has it all over an amateur.你是专职的, 我是业余的.You are a professional, but I am...
the emergence of a fully fledged market economy成熟市场经济的出现Computer science is now a fully - fledged academic subject.计算机科学目前已是一门成熟的学科.As soon as the rain stops , a young sparrow, almost full fledged, comes to the courtyard...
This discolouration is completely harmless.这种变色是完全无害的.Dual - action toothpaste with Xylitol and baking soda to remove stains and surface discolouration from teeth.这种双重作用的牙膏,含有木糖醇和小苏打,能清除牙齿表层的污垢和污色.Discolouration of silve...