ethylamine是什么意思

Medicine intermediate N - ethylethylenediamine ( NEED ) was synthesized from acrylamide and ethylamine by addition reaction and Hofmann rearrangement.以丙烯酰胺为起始原料,经乙胺加成后,再经Hofmann重排两步反应后合成了药物中间体N - 乙基乙二胺 ( NEED )....

ethylamine的音标：ethylamine的英式发音音标为：['eθələˌmi:n]ethylamine的美式发音音标为：['eθələˌmin]...

day的反义词有：night, night。n.day的反义词（白天）：night。day的反义词（其他释义）：night。...

incite的第三人称单数（三单）为：incites...

benzoquinoline的音标：benzoquinoline的英式发音音标为：[benzəkwaɪ'nəlɪn]benzoquinoline的美式发音音标为：[benzəkwaɪ'nəlɪn]...

fenestra的复数形式为：fenestrae...

toenails的音标：...

ideologist的复数形式为：ideologists...

A non-aggression pact will be signed between the two countries.两国将签署互不侵犯条约。Police refused to say if the couple died in a suicide pact.警察拒绝回答这对夫妇是否是一起自杀的。He says this contract should not be patterned after the Deere pact....

The meat was chewy and the sauce was glutinous and tasted artificial.肉嚼不烂，酱汁黏稠，味道也不自然。The meat was too chewy.这肉嚼不动。This creates its characteristic hard , glazed crust and chewy interior.这种做法使它具有表面坚韧且光滑、里面又很耐嚼的特色....

n.粗长钓丝，钓延绳...

...the motion picture industry.电影产业Long long ago, we knew the periodic motion of a planet.很久以前, 我们就知道行星的周期运动.They've tabled a motion criticising the Government for doing nothing about the problem.他们提交了一项动议，批评政府在该问题上...

The mayor convoked a committee to discuss the beautification of the city.市长召集了一次委员会,讨论城市的美化问题....

arithmetization的音标：arithmetization的英式发音音标为：[ærɪθmɪtaɪ'zeɪʃn]arithmetization的美式发音音标为：[ærɪθmɪtaɪ'zeɪʃn]...

hearten的现在完成时为：heartened...

n.摩登派，现代派分子adj.现代派的，新潮的，极时髦的abbr.现代的（等于modern），修改（等于moderate），模数，绝对值（等于modulus）...

diphenylethylene的音标：diphenylethylene的英式发音音标为：[daɪfenɪleθɪ'li:nl]diphenylethylene的美式发音音标为：[daɪfenɪleθɪ'linl]...