butyrolactone什么意思解释

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 )....

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]...

I think marriage is used to uphold patriarchal control.我觉得婚姻是用来维系父权统治的。We have a duty to uphold the law.维护法律是我们的责任。The Supreme Court is expected to uphold the death sentence.预计最高法院将维持死刑的原判....

n.选民（全体），选举区，[史]选帝侯的爵位[领土]...

“估测者”的拼音为：gū cè zhě...

excelled的音标：excelled的英式发音音标为：[ɪk'seld]excelled的美式发音音标为：[ɪk'seld]...

animalist的音标：animalist的英式发音音标为：['ænɪməlɪst]animalist的美式发音音标为：['ænɪməlɪst]...

calendering的音标：calendering的英式发音音标为：[kæ'lɪndərɪŋ]calendering的美式发音音标为：[kæ'lɪndərɪŋ]...

shameful的近义词有：ashamed, shameful。下面这两个形容词均含"羞愧的"的含义：ashamed ：用于人，指因干了错事、坏事或傻事等而感到羞愧。shameful ：指人或人的行为本身不光彩、不道德。...

“困难”的近义词/同义词：艰难, 艰苦, 坚苦, 贫苦, 贫困, 贫穷, 困苦, 困穷, 麻烦, 繁难, 障碍, 疾苦, 难题, 贫乏, 贫寒, 贫窭, 清贫, 穷苦, 穷困。...

...a venerable old man with white hair.一位受人尊敬的白发长者Venerable dailies such as the Tokyo Times have shut down.像《东京时报》之类的一些有名望的日报已经停刊了。Her Chinese friends referred to the Empress as their venerable ancestor.她的中国朋友们说这位女皇是他们值得...

insurgent的近义词/同义词有：agitator, rabble-rouser, instigator, rioter, revolter, rebel, ringleader, troublemaker, agitator, rabble-rouser, rioter, rebel, ringleader, troublemaker, instigator, revolutionary。n.insurgent的近义词（暴徒;煽动...

沃德豪斯的书信选集卖了1,232英镑。A selection of correspondence from P G Wodehouse realised £ 1,232. P.G.她在书信和笔记中几乎从不提及他。She virtually never mentions him in her corre-spondence or notebooks.人们必须以书信方式重新登记机动车辆。People had to renew their m...

“良姜酮”的英语可以翻译为：[化] alpinone ...

perches的音标：...

gleamy的音标：gleamy的英式发音音标为：['gli:mɪ]gleamy的美式发音音标为：['glimɪ]...

目的探讨舌系带过短小儿手术治疗的理想时期.ObjectiveTo investigate the ideal surgical period of children with tongue - tie.舌系带黏连的诊断与治疗须要更多新生儿科与小儿牙科的调查研究,期盼能给父母亲们客观的建议.Further evidence - based investigation with regards to neonatal and dental ...