In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.Dichloroethane can be converted to VCM.二氯乙烷被转化为氯乙烯.Objective : To investigate the CT and MRI features of Subac...
以这样的速度,我们永远也完不成.We'll never finish if we go on at this rate.这样一件活,一天是完不成的.Such a piece of work cannot be completed in a day.照这样下去的话,我们永远完不成.We shall never finish at this rate....
Last season both Duff and Lennon crossed nearly 200 balls between them.上个赛季,达夫和列农都有近200个传中.Did you know that John Lennon was murdered by a stalker?你知道约翰列侬就是被追星族杀掉的 吗 ?As it drops to Lennon again , Cech brilliantly parrie...
我们翻看他们的八卦时带着不洁的想法。We read the gossip written about them with prurient interest.店里的一些地方十分肮脏不洁,简直就是滋生细菌的理想温床。Parts of the shop were very dirty, unhygienic, and an ideal breeding ground for bacteria.伤口不洁可受感染.A dirty cut may...
On 20 August 1960 Senegal seceded.塞内加尔于1960年8月20日独立出去。Crewmen aboard the tanker sighted a ship in distress off the coast of Senegal.油船上的船员们在塞内加尔的近海发现了一艘失事的船.The island of Goree lies off the coast of Senegal, opposite Dak...