butyrolactone什么意思解释

butyrolactone的音标：butyrolactone的英式发音音标为：[betɪrɒ'læktəʊn]butyrolactone的美式发音音标为：[betɪrɒ'læktoʊn]...

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 )....

恐怕陆地战爆发的可能性很大。I fear that a land war now looks very probable.这场政治争端有可能演化成一场全面爆发的危机。This political row threatens to grow into a full blown crisis.这种不安情绪终有一天会爆发的.The disquiet will boil over in the long run....

I tried to beat that blackjack game at the Horseshoe Club in Brooklyn.我想赢布鲁克林那个马蹄俱乐部的21点.I'll shoot some craps or play some blackjack.我要掷几把骰子，玩几把21点纸牌。Such as roulette , blackjack , craps, baccarat, keno, slot machi...

hotshot的音标：hotshot的英式发音音标为：['hɒtʃɒt]hotshot的美式发音音标为：['hɑtʃɑt]...

n.贴水，扣头，折扣...

After a pause Alex said sharply: "I'm sorry if I've upset you"歇了一会儿后，亚历克斯毫不客气地说：“要是让你心烦了，那我很抱歉。”I saw him pause ever so slightly.我看到他稍稍停顿了一下。They pause and chew their pencils.他们停了下来，咬着铅笔。...

lacework的音标：lacework的英式发音音标为：['leɪswɜ:k]lacework的美式发音音标为：['leɪsˌwɜk]...

freckle的一般过去时为：freckled...

Is the remedial method with unripe best aphtha?生口疮最好的治疗方法是?...

纤维素是带有好多羟基的不幼链环型布局的聚合物.Cellulose is a very polyhydroxylated of long - chain - type structure of the polymer.使用的催化剂对醇 羟基 的氧化具有高度的选择性并有很高的转化率.These reactions catalyzing oxidation of alcohol - OH groups have high yield and ...

Cowpeas have a number of advantages over groundnuts.与花生相比豇豆有好几种优点.Peanuts, or groundnuts, are an important crop in many developing countries.花生, 或者是落地花生, 在许多的发展中过家是很重要的农作物.We assure you that the oil content of the ground...

The clothes were very showy, very theatrical.那些衣服很艳丽很华美，像戏装一样。She knew many theatrical personalities and had worked, among others, with George Bernard Shaw.她认识许多戏剧界人物，并与乔治·萧伯纳等很多人共过事。There was a theatrical air about the ...

代森锰...

grit的现在进行时为：gritting...

Clinically it may be confused with adenofibroma and lipoma.临床上易与腺纤维瘤及脂肪瘤混淆.He's in hospital, and in a confused state of mind.他住院了，意识仍然不清。And, read those headline, it is antilogy simply, logic is confused.而且, 看看那些标题,...

He apologized amply for his suddenness.他因自己的唐突而深表歉意.We must make our views amply clear to you.说话要明白.All of his sons have been amply portioned.他的所有儿子都继承到了丰厚的遗产。They have been amply rewarded with huge salaries.高额的薪水给了他们丰厚的...