Calcium cyanamide is poisonous and irritating to the skin.氰氨化钙是毒性物质,对皮肤有刺激性.A new process, urea - calcium cyanamide method, for producing thiourea from urea and hydrogen sulfide is proposed.利用尿素和硫化氢等原料制备硫脲, 提出了尿素 - 氰氨化钙法...
她有时真是个悍妇。She can be quite a tartar.你这个愚蠢的小悍妇!You stupid little bitch!悍妇的一种流行变体是 丈母娘.A popular variant of the dominant female is the mother - in - law ....