醚

Through research, MTBE is a good high-octane level of gasoline additives and antiknock.

通过研究，甲基叔丁基醚是一种良好的高辛烷值汽油添加剂和抗爆剂。

Filter the separated aqueous layer, wash the diphenyl ether with 5.0ml of ice-cold water, pass the washings through the filter, and collect the filtrate and washings in a 25-ml volumetric flask.

过滤已分离的水层，用5.ml的冰水洗涤二苯醚，合并滤液和洗涤液。

Methods: Oncomelania hupensis was immersed in different concentrations of extracts from Sarcotesta of Ginkgo biloba by benzinum, acetic ether or absolute alcohol. Molluscidal effects were observed at 24,48,72,96 h, and compared with those of extracts from sarcotesta of Ginkgo biloba combined with arecoline.

将经石油醚、乙酸乙酯和无水乙醇提取的银杏外种皮提取物稀释成不同浓度，用浸杀法观察24，48，72，96 h的杀螺效果；并与槟榔碱水提物联合用药的杀螺效果进行比较。

Substituted aryl ethers are the key intermediate compounds to synthesize dye, medicine, pesticide and so on.

取代芳基醚这类化合物，是合成染料、医药、农药等的重要中间体。

It is reported the effect of extracted fungicide from composite, chenopod , legume, rosaceae , euonymus , labiate , rutaceae and asclepiad with water, ethyl alcohol and petroleum ether, to Valsa Mali Miyabe et Yamada .

就菊科、藜科、豆科、蔷薇科、卫矛科、唇形科、芸香科和萝摩科的 10种不同植物组织的水、乙醇和石油醚浸出物对苹果腐烂病原的抑制作用进行了研究，并比较了以中草药为原料制成的膏状制剂对苹果腐烂病的防治效果。

Objective To compare the clinical effect of the Penehyclidine hydrechloride and Atropine to the patients received painless gastroscopic examination.

目的 比较盐酸戊乙奎醚和阿托品用作无痛胃镜术前用药的临床效果。

And Bauhinia purpurea could inhibit vibrio. And the extracts, extrated with petroleum ether from leaves of Melia azedarach L. and Bauhinia purpurea can inhibit Vibrio parahaemolyticus, too. The remainder extracts of Mangifera indica Linn.showed strong inhibition effect on Vibrio tubiashii. While the extracts of Eriobotrya japonica showed no inhibition effect.

结果 夹竹桃叶、芒果叶、苦楝叶和羊蹄甲叶4种中草药乙酸乙酯萃取部分对供试弧菌有很好的抑菌作用；苦楝叶和羊蹄甲叶石油醚萃取部分对副溶血弧菌有抑菌作用；芒果叶的水溶性部分对塔氏弧菌有很强的抑菌作用；枇杷叶提取物对4株弧菌均无抑制作用。

Purposes:With ethanol, ethyl ether, chloroform, benzene, ether and other immiscible oil, and with some solvents can be formed azeotrope.

用途：与乙醇、乙醚、氯仿、苯、石油醚等混溶，并与可其中一些溶剂形成共沸物。

Meanwhile, experiment with the ternary mixture of methanol, butyl methyl ether and 1-chlorobytane showed that the system was not ternary azeotrope and can be separated by combination of extractive and rectification using water as extractive solvent.

针对甲醇、甲基正丁醚和正氯丁烷三元混合物，研究了该物系的性质，得到该物系不是三元共沸物的结论，并用水作萃取剂，通过实验验证了利用萃取和精馏耦合的方法分离该物系的可行性。

In the chapter 2 of this dissertation, we studied the cross-coupling reaction of aryl halides and vinyl iodides with sodium azide under the catalysis of copper and amino acids.

在4-碘茴香醚与叠氮化钠的模型反应中，我们考察了不同溶剂、氨基酸、碱、铜盐对反应的影响，最后筛选出了最佳的反应条件：CuⅠ/脯氨酸/NaOH/DMSO。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。