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The synthesis methods of double (three chlorine methyl) carbonate by using solvent and nonsolvent method are introduced.

给出了溶剂法和非溶剂法两种合成双(三氯甲基)碳酸酯的法。

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The free radical polymerization of VOZO in benzene solution results poly 2 vinyl 2 oxazoline(PVOZO).

合成过程中的溶剂及分离等问题进行了讨论。

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To develop headspace gas chromatography for the determination of residual solvent in Amodiaquine Hydrochloride.

建立顶空气相色谱法分析盐酸阿莫地喹中溶剂残留。

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The refined solvent oil with less than 0.1%aromatics wa s used in medicine Brufen production as conventional solvent.

药品布洛芬生产新工艺中采用精制的橡胶工业用溶剂油(精制溶剂油)作通用溶剂,要求其芳烃含量小于0.1%。

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The method was established for purification of diflubenzuron by crystal technique with mixed solvents.

本文论述了利用混合溶剂——结晶法提纯除虫脲的分析技术。

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The article presents Synthesizing Allyl isorhodanate by using microwave energy withmethylic alcohol as solvent.

以甲醇溶剂,利用微波能来合成异硫氰酸烯丙酯的新法。

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Either glyme, diglyme, nitromethane, or other suitable solvents of similar polarity may be used as the solvent component.

乙醚、乙二肟、二乙二肟,硝基甲烷或类似的适当的极性溶剂,可用作溶剂

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Either glyme, diglyme, nitromethane, or other suitable solvents of similar polarity may be used as the solvent component.

乙醚、乙二肟、二乙二肟、硝基甲烷或类似的适当的极性溶剂,可用作溶剂

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In this field it provides high tinctorial strength and relatively good lightfastness.

因有限之耐热性及耐溶剂性,影响到此产品之较广泛使用。

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The preparation of anisaldehyde by ozonolysis reaction from anethole was studied.

以茴原料,乙酸和环己烷的混合物做溶剂,臭氧化法制备茴醛。

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Molality - The number of moles of solute divided by the number of kilograms of solvent.

质量摩尔浓度 -痣的数目溶质除以公斤的溶剂

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Objective: To compare the extraction efficiency of imperialine extracted with different solvents.

比较不同溶剂西贝素的提取效率的影响。

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One new solvent free impregnating resin based on unsaturated polyester with modified diphenylene ether is prepared.

以改性二苯醚树脂原料,合成了一种新颖不饱和聚酯型无溶剂浸渍绝缘漆。

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Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin.

本文研究从荆芥穗中提取回收聚苯乙烯所需的柠檬烯,其法是溶剂萃取。

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Sodium thioantimoniate is used to make quinsulfide antimony and to clean the solution during zinc electrolytic deposition.

硫代锑酸钠主要用于制备五硫化锑以及在电解锌过程中清理溶剂以析出金属锌。

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Most other processes use chemical solvents, like Methylene Chloride or Ethyl Acetate to decaffeinate coffee beans.

而通常这个过程,有些工艺会使用二氯甲烷(用作萃取剂)或乙酸乙酯(用作溶剂)等。

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The carbonization of exrtacting constituents of preheated Shenfu noncoking and Liulin dominant coking coal has been studied.

预热神木不粘煤及柳林主焦煤中不同溶剂抽提组分的碳化特性分别进行了比较研究。

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Chloroform being solvent,under bath heat,4 hydroxymethyl caged bicyclic phosphate acylated with pentanoyl chloride and hexanoyl chloride dividedly.

用氯仿作溶剂,在浴温条件下,4羟甲基笼状双环磷酸酯分别与戊酰氯、己酰氯发生酰化反应。

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The effect of solvent polarity and guanidinium on the con-formation of carbonic anhydrase was studied by fluorescence emission spectrum.

以紫外荧光光谱检测手段,比较研究了溶剂极性及盐酸胍碳酸酐酶构象的影响。

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In contrast with different extraction methods, the alkannin could be extracted quickly and effectively by the ultrasonic wave.

研究了超声波法和有机溶剂法提取天然紫草色素的工艺条件,超声波法可明显提高色素的提取速率。

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The solvent is the liquid that carries all of the other ingredients inside the marker.

溶剂是马克笔内携带所有其他成分液体。

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Some glues use water as a solvent, but others use chemicals that can be harmful to inhale.

有些胶水用水溶剂,其它则用吸入有害化学试剂溶剂

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VOA常速英语_科技

The dye is in the organic solvent and the polymer is in the water .

染料放置在有机溶剂中,聚合物放在水中。

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So, a homeopathic remedy for insomnia might include an extremely diluted solution of caffeine.

所以,治疗失势疗法可以是高度稀释咖啡因溶剂

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超能陆战队(有声书)

Wasabi grabbed a bottle and sprayed its contents into the air.

芥末无疆抓起只瓶子,向空中洒了些瓶子里溶剂

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VOA慢速英语_科技

This part of the process would involve putting the plastic material into a highly acidic solution.

部分过程包括将塑料放入强酸性溶剂中。

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Osmosis-泌尿

In general, when certain solutes become too concentrated in the solvent, they become supersaturated.

说,当溶质在溶剂中过于浓缩时,会过饱和。

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Then, they decided which solvents could dissolve the overpainting while minimally affecting the original.

然后,他们决定哪种溶剂可以在最小程度上影响原作同时溶解覆盖物。

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A century after this modification, art conservators analyzed and removed the overpainting with select solvents.

在此修改个世纪后,艺术保护人员分析并使用精选溶剂去除了覆盖。

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独霸 第

But it is a solvent, and kills the bacteria before they can make very much.

但异丁醇是溶剂,生产过程中会杀死制备它细菌,从而减少产量。

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Osmosis-泌尿

Now, urine's a combination of water, which acts as a solvent, and all sorts of particles, or solutes.

尿液由水和各种颗粒组成,水是溶剂,颗粒为溶质。

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The strong smell of many glues comes from the solvent, which evaporates when exposed to air.

许多胶水强烈气味自于它溶剂,当暴露于空气中时会发生挥发。

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经济学人-科技

As the stream of dissolved polymer travels through the air, the solvent evaporates, leaving behind a solid thread.

当溶解聚合物在空气中流动时,溶剂蒸发,留下个固体线。

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科学60秒-科学美国人 2023年6月合集

It fully dissolves oxygen from the air, and any solvent or any ion can be dissolved fully.

它能完全溶解空气中氧气,任何溶剂或任何离子都能被完全溶解。

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十万个为什么

Today, most paints are made using three main ingredients — a pigment, a resin, and a solvent.

如今,大多数颜料都是使用三种主要成分制成:色素、树脂和溶剂

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TED-Ed(视频版)

In order for these ingredients to comingle and react with each other, they need a liquid solvent: water.

为了使这些成分相互反应,他们需要种液体溶剂:水。

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双语版 TED-Ed 演讲精选

In order for these ingredients to commingle and react with each other, they need a liquid solvent: water.

为了使这些成分相互混合和反应,它们需要种液体溶剂:水。

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超能陆战队(有声书)

Hiro nodded, noticing that Wasabi carefully placed his spray bottle back into a particular circle on the table.

小宏点点头,注意到芥末无疆小心翼翼地将溶剂瓶子放回到桌子上特定圈里。

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TED演讲(视频版) 2017年1月合集

See, water isn't just the universal solvent.

看, 水不仅仅是通用溶剂

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学生科学报

Such organic solvents slow the speed at which the water dries.

这种有机溶剂会减慢水干燥速度。

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