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 ). N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.
The chimney pots are purely ornamental.这些烟囱管帽纯属装饰。The stream was dammed up to form ornamental lakes.溪流用水坝拦挡起来,形成了装饰性的湖泊.The ornamental ironwork lends a touch of elegance to the house.铁艺饰件为房子略添雅致....
Then why not just take back all your fancy gadgetry?那你怎么不把这堆玩意给我撤了?In the days before domestic gadgetry and time-saving appliances, food preparation took up most of the day.还没有家用小器具和省时的家用电器的时候，准备食物得花大半天时间。...a passion fo...
It was a novel idea to control the growth of Microcystis actinomycete.利用放线菌的代谢产物特异性抑制或杀死微囊藻是一条治理水华的新思路.The mechanism of flocculation and removal of Microcystis aeruginosa by chitosan - modified clays was studied.文章探讨了壳聚糖...
It is important to be clear about what Chomsky is doing here.很有必要搞清乔姆斯基在这儿干什么。Chomsky'sdefence of his approach goes further.乔姆斯基对自己方法的辩护不止于此。Chomsky's review is entitled "Psychology and Ideology".乔姆斯基的这篇评论题为《心理...
Despite what the antis would tell you, hunting is for people from all walks of life.不管持反对意见的人将告诉你什么，狩猎适合于各个阶层的人。They refused to join forces with the antis.他们拒绝与反对派合作.They to join forces with the antis.他们拒绝与反对派“合作”....