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Studies indicate that chymist coprecipitation annexed azeotropic distillation can better prevent from hard-agglomeration and obtains homodisperse nanoparticle.

研究表明,在共沉淀法中辅共沸蒸馏过程,可较好地防止粉体的硬团聚,得到分散均匀的纳米级超细粉体。

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P-methoxybenzeneacetonitrile was prepared in 34. 8% yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation.

醚为原料,经过氯基化,氰化反应后,通过精馏获得对氧基乙腈,总收率为34.8%。

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Codistillation is distillation which is performed on mixtures in which the two compounds are not miscible.

共馏是对由不易混合的两种化合物组成的混合物进行的蒸馏。

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The distillation system design of isomeric dichlorotoluene and its production process are given in detail in this paper.

详细讨论了二氯体精馏塔系统的工程设计与生产过程。

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The quality of green oxane can be up-graded by addition of acid followed by distillation or by p...

对青叶烷加酸再精馏或长期贮存,可提高产品质量。

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Definition: Nutmeg oil is obtained by steam distillation of the dried and crushed kernels of Myristica fragrans Houtt.

本品为肉豆蔻科植物肉豆蔻树Myristica fragrans Houtt.压碎的新鲜果仁经水蒸气蒸馏获得的挥

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Energy-saving ethanol dehydration techniques to produce dehydrated alcohol mainly included four measures as azeotropy distillation, extraction distillation, absorptive process and membrane separation.

要节能型乙醇脱水制备无水乙醇的方法主要有4种:共沸精馏法、萃取精馏法、吸附法和膜分离法。

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By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled,and boron was finally determined by curcumin spectrophotometry after distillation.

同时,对所拟溶样条件下所得硼的分析结果是否为全硼问题进行了进一步探讨,结果证实,所拟溶样条件下硼的测定结果为全硼。

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The main factors that influence the extractive distillation were researched such as the theoretical plate number, feedboard, solvent ratio, reflux ratio, the temperature of solvent.

通过计算考察了理论板数、进料位置、溶剂比、回流比、萃取剂温度等主要影响因素的改变对萃取精馏过程的影响,为工业应用提供理论与实践基础。

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To prepare Muxiang shunqi oral liquid,steam distillation,diacolation and decoction methods were adopted and compared. The results show that the steam distillation is the best process.

采用水蒸汽蒸馏提取法、渗漉法和煎煮法制备木香顺气口服液。通过成品的理化性质及薄层色谱的比较,确定水蒸汽蒸馏提取法为最佳工艺,并确定最佳流程。

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With the carbonium 5 separation unit as an example, the operational performance and the energy saving effects of the thermal-ly coupled distillation was simulated and analyzed for the nonideal system.

碳五分离装置为例,对热偶精馏塔用于非理想体系的操作特性和节能效果进行了模拟分析与研究。

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史蒂芬‧金谈写作

All the arts depend upon telepathy to some degree, but I believe that writing offers the purest distillation.

定程度上都要仰仗心灵感应,但我相信写作最纯粹种。

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双语版 TED-Ed 演讲精选

That changed with the invention of a process called distillation.

而蒸馏发明改变了这

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Scishow 精选系列

But distillation isn't all it takes to make perfume.

蒸馏并不制造香水全部。

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怪奇物语 第

During fractional distillation, hydrocarbons are separated according to their......- Melting point.

馏过程中烃类以什么离开?- 熔点。

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科学大揭秘

In the process of fractional distillation, diesel is extracted first, followed by gasoline as the crude is refined further.

馏过程中,柴油首先被提取,然后汽油随着原油步精炼而被提取。

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英语演讲大全

I think the United States is really a distillation of the spirit of human exploration.

我觉得美国真人类探索精神升华。

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Scishow 精选系列

Distillation, a chemical procedure used to separate liquids that have two different boiling points, uses a device called a still.

蒸馏种用于离具有两种不同沸点液体化学过程,使用种叫做蒸馏器装置。

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BBC Ideas

Distillation goes back to the ninth century when Arabian alchemists developed the alembic still.

蒸馏可以追溯到九世纪,当时阿拉伯炼金术士发明了蒸馏器。

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Art Theory Tutorials

Remember, there's a reason it's called a distillation study and not just a two-value study.

请记住,它被称为蒸馏研究而不仅仅二值研究有原因

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新编英语教程5

Distillation suggests essence, and we might further improve the sentence by adding this word at the beginning.

提炼暗示本质,我们可以通过在开头添加这个词来进步改进句子。

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Geo History

The lighter molecules evaporate to the top of the distillation column where the temperature is around 20 degrees Celsius.

子蒸发到蒸馏塔顶部, 那里温度约为 20 摄氏度。

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Art Theory Tutorials

Well, you need to keep the integrity of your initial distillation intact.

那么,您需要保持初始蒸馏完整性。

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Art Theory Tutorials

But anyway, now that I have those lines, I can start my distillation painting.

但无论如何,既然我有了这些线条,我就可以开始我蒸馏绘画了​​。

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《沙丘》有声书

She thought of the boy's features as an exquisite distillation out of random patterns—endless queues of happenstance meeting at this nexus.

她认为这个男孩特征从随机模式中精妙地提炼出来——在这个联系处偶然相遇无尽队列。

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Art Theory Tutorials

So if you want to practice painting, start with your distillations and don't skip that step.

因此,如果您想练习绘画,请从蒸馏开始,不要跳过这步。

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Reel知识卷轴

This is a tribute, a distillation of what is utterly amazing about this magical, shared language, what keeps us alive, and what we live for.

对这种神奇、共享语言致敬和升华,它让我们得以生存,让我们为之而活。

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经济学人(汇总)

At the moment, most of the world's pure oxygen is made by the liquefaction and subsequent distillation of air, to separate it into its components.

目前,世界上大部纯氧都通过空气液化和之后蒸馏得到,并将其解成各种成

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Art Theory Tutorials

Technically, in case you are wondering, the entire distillation method of painting is just an aspect of stroke economy.

从技术上讲, 如果你想知道话,整个绘画蒸馏方法只笔画经济个方面。

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趣谈语言学

The practice spread to Europe where the distillation process was seen as extracting the very spirit of wine, which was believed to have life-giving properties.

这种做法传播到欧洲, 在那里蒸馏过程被视为提取葡萄酒精神,人们认为这种精神具有赋予生命特性。

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What method of distillation will yield us invariably the same essence from which so many different products borrow either their obtrusive odour or their delicate perfume?

什么样蒸馏方法将始终为我们带来相同本质, 许多不同产品从中汲取了突兀气味或精致香水?

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