isopropyl是什么意思？

Under the optimum condition the yield of isopropyl cyclopropane carboxylate is 92 %.在最佳反应条件下,环丙烷羧酸异丙酯的产率达92%.Isopropyl p - hydroxybenzoate was synthesized with toluene - p - sulfonic acid as catalyst.以对 甲苯 磺酸为催化剂合成了尼泊金异丙...

isopropyl的音标：isopropyl的英式发音音标为：[ˌaɪsə'prəʊpɪl]isopropyl的美式发音音标为：[ˌaɪsə'proʊpɪl]...

“百分”的拼音为：bǎi fēn...

hedreocraton的音标：hedreocraton的英式发音音标为：['hedri:əʊkreɪtən]hedreocraton的美式发音音标为：['hedrioʊkreɪtən]...

“属国”的拼音为：shǔ guó...

立刻，当场，在危险中，处于负责地位...

n.马来群岛土人所穿的围裙，布裙( sarong的名词复数 )...

n.腹部绞疼，怨言( gripe的名词复数 )，不平，不满v.感到或引起腹或肠绞痛( gripe的第三人称单数 )，抱怨（某人[某事物]），发牢骚...

passageway的近义词/同义词有：arcade, channel, passage, lane, opening, entranceway, artery, corridor, hallway, alley, waterway, hall, lane, hallway, opening, entranceway, corridor, channel, lobby, passage, aisle, approach, arcade,...

1938年，凯恩以点数击败杰基·杜里克，获得了世界拳王称号。Kane won the world title in 1938 when he outpointed Jackie Durich.经济学家约翰∙梅纳德∙凯恩斯的信徒a disciple of the economist John Maynard Keynes她姓凯恩,名叫希拉.Her first name is Sheila and her surname is Kane....

Rachis - removing could increase grain weight, while defoliation could lower grain weight.剪库增加粒重, 而剪源则降低粒重.Viticulture: Traditional; defoliation and green harvest to have optimal yield control.种植方式: 传统种植, 疏叶疏果来控制产量.Defol...

drawber的音标：drawber的英式发音音标为：[d'rɔ:bər]drawber的美式发音音标为：[d'rɔbər]...

n.船夫曲，水手歌（亦作chanty 或shanty）...

霍华德想成为流行歌手，但因怯场而心生畏惧。Howard wanted to be a popular singer, but stage fright crippled him.这位不喜欢抛头露面的歌手在3年来的首次访谈中畅所欲言。The publicity-shy singer spoke frankly in his first interview in three years.顶级歌手、舞蹈演员和名人们给他们带来娱乐。They w...

...a demand for a greater choice of effective contraceptive methods...对于更为多样的有效避孕方法的需求It and removed by a hysteroscope and is expected to be aand permanent intratubal contraceptive device.结果表明,输卵管聚乙烯节育栓有望成为经宫颈途径持久的避孕器.Th...

Quechua, the lineal descendant of the Inca language克丘亚语这一印加语的直系派生语言He is a lineal descendant of the company's founder.他是公司创始人的直系后裔。Innovation is lineal economics fails to envisage the economy with illuminate all the...

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