N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP )....
Parts of the ocean there look just absolutely apocalyptic.海洋的很多区域看上去完全像是世界末日。apocalyptic literature启示文学...a gloomy and apocalyptic vision of a world hastening towards ruin.未来世界加速迈向毁灭的暗淡而恐怖的景象He attempts to explore dismal...
Some people like to strip themselves naked while they have a swim in a secluded place.一些人当他们在隐蔽的地方游泳时,喜欢把衣服脱光.Will you watch over my clothes while I have a swim?我去游泳,你帮我看一下衣服好 吗 ?Certain fishes have a swim bladder which ...
他领受了坚振礼，成为英国国教会的一员。He was confirmed as a member of the Church of England.他现在是乡村教会的长老。He is now an elder of the village church.废除该教会的国教制是正确的。It would be right to disestablish the church....