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The method and the condition of separation epoxy ethane from dihydric alcohol are discribed.

介绍了环与二元醇的分离方法和条件。

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Half the number of bolts in floating head of deethanizer overhead cooler were brittle fractured.

气体分馏装置脱塔顶冷却器浮头螺栓,半数发生脆性断裂。

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There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.

泥灰岩比纯灰岩所产气体中含有更多的甲、异丁和异戊

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No osmyl and no taste.Soluble in Benzene,Acetone,C2H4Cl2,CS2,toluene,party soluble in alcohol,diethyl ether,insoluble in water,gasoline.

溶于丙酮、苯、甲苯、二、二氯,微溶于醇和醚,不易溶于水和汽油。

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N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.

以苯胺和溴为原料,用四基氢铵作相移催剂,在常压下合成N,N二基苯胺。

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However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氯丙的大于环、丁基醚环

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The results showed that the main product was benzaldehyde and a little by-products were styrene oxide and phenylacetaldehyde.

发现该工艺中主要生成苯甲醛,少量副产物是环和苯醛等。

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N,N-diethylaniline was synthesized from aniline with bromoethane using tetraethylammonium chloride as phase transfer catalyst under atmospheric presure.

用四基氯胺作相移催剂可在常压下由苯胺和溴合成N,N-二基苯胺。

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The new preparation method of Al-Ti-C grain refiner was studied with aluminium ingot,potassium hexafluorotitanate,aluminium powder,hexachloroethane and carbon powder.

提出了利用铝锭、氟钛酸钾、铝粉、六氯粉制备铝钛晶粒细剂的新方法。

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Tetrachloroethane in air was collected by activated carbon,desorped with carbon disulfide,separated by GDX-103 chromatography column,and detected by flame ionization detector.

空气中四氯用活性炭管采集,二解吸,经GDX-103色谱柱分离,氢火焰离子检测器检测。

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This paper initially discussed synthesis and modification of tetrafunctional epoxy resin(1,1,2,2- tetrakis(hydroxy phenye)ethane),as well as application in copper clad laminate.

对四官能环树脂[1,1,2,2-四(对羟基苯基)四缩水甘油醚]的合成与改性及在覆铜板中的应用作了初步探讨,并对其屏蔽紫外线与产生荧光的机理作用作了简单阐述。

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The amino-acid imidazoline amphoteric surfactant was prepared from dichloroethane and vegetable-oil fatty acid as raw materials by aminolysis, esterffication and hydroxymethylation.

以二氯与植物油脂肪酸等为原料,通过氨解、酯、羟甲基缩合反应制得氨基酸类咪唑啉型两性表面活性剂。

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However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.

不过其他溶剂(如丙酮和三氯三氟)就不会,操作适用于回收孢子接种物。

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Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.

采用纤维素与过量的氯及氢钠反应,以甲苯为稀释剂,用一步法成功地合成了基纤维素。

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A novel dust proofing agent for dyestuff was prepared by the addition of industrial fatty acid and glycol epoxide, which could produce a kind of emulsor.

采用工业脂肪酸和环加成法研制成乳剂,进而获得一种新型染料防尘剂。

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The proposed method was applied to extracting pure spectra and determining background of a two component system which consists of dichloroethane and propanone, satisfactory results were obtained.

本方法用于二氯及丙酮中各组分红外光谱的提取,获得了满意的结果。

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The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.

研究了以麦芽酚、基麦芽酚生产中的碱式溴镁废渣为原料制取溴;以溴、醇合成溴的方法。

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少儿百科之歌

They're formed when ultraviolet light interacts with ethane you see.

它们是由于紫外线对乙烷的作用形成的,你看。

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此间的地球

The infrastructure to turn that ethane into plastic, has expanded.

乙烷转化为塑料的施已经扩大。

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学生科学报

Their liquid is not water but ethane and methane.

它们的液体不是水, 而是乙烷和甲烷。

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Crash Course 综合篇

Sometimes, a hexane can look like a pentane with an ethane sticking off of it.

有时,己烷看起来像戊烷, 上面粘着乙烷

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VOA Special 2017年9月合集

It has lakes and seas of liquid methane and ethane, instead of water.

它有液态甲烷和乙烷的湖泊和海洋,而不是水。

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Crash Course 综合篇

This is ethane, C2H6. Another gas, and it's mostly used in the production of plastics.

乙烷,C2H6。 另一种气体, 主要用于塑料生产。

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TED演讲(视频版)双语精选

It is so cold, though, that its liquid hydrocarbons, methane and ethane, that you would use for fuel here on Earth.

不过它非常冷,些都是液态烃,甲烷和乙烷,在地球上被用作燃料的液体。

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此间的地球

The availability of cheap ethane from the fracking boom, all across the country is driving this build-out.

- 全国各地水力压裂热潮乙烷的供应正在推动种扩建。

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TED演讲(视频版) 2020年9月合集

And at Titan, there are also exotic lakes and seas of liquid methane and ethane on the surface.

在土卫六上,地表也有奇异的液态甲烷和乙烷湖泊和海洋。

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So has investment in petrochemical plants that turn ethane into plastic.

对将乙烷转化为塑料的石化工厂的投资也是如此。

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And then the existence of the facilities sort of as a pull factor, drives the production of more ethane.

然后施的存在有点像拉动因素,推动了更多乙烷的生产。

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Once ethane is collected from fracking, it's sent to a cracker plant.

一旦从水力压裂收集到乙烷,它就会被送到裂解厂。

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Cracking ethane into ethylene also carries a huge carbon footprint.

乙烷裂解成乙烯也会产生巨大的碳足迹。

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And U.S ethane now supplies 10% of European ethylene production.

美国乙烷现在供应欧洲乙烯产量的 10%。

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此间的地球

Despite the health impacts and the toll on the environment ethane and plastic production is big business.

- 尽管乙烷和塑料生产对健康有影响,对环境也有影响,但仍是一项大生意。

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奇思妙想科学站

The reason you'd have such a hard time keeping your head above the surface is due to the liquid methane and ethane found in Titan's lakes.

你很难将头保持在水面之上的原因是泰坦湖发现了液态甲烷和乙烷

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此间的地球

Ethane cracker plastic production plant, for example, in Scotland, that was down to 40% capacity, because there wasn't enough ethane in Europe to run it.

- 例如,苏格兰的乙烷裂解塑料生产厂的产能下降到 40%,因为欧洲没有足够的乙烷来运行它。

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According to one report the carbon emissions from the cracking of ethane and an alternative ingredient called naphtha were equivalent to 52 coal-fired power plants in 2015.

根据一份报告,2015 年乙烷和一种称为石脑油的替代成分裂解产生的碳排放量相当于 52 座燃煤电厂的排放量。

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So an ethane cracker is an absolutely enormous facility that uses a tremendous amount of energy to it's called crack the ethane molecules into ethylene, and then turn them into these tiny little plastic pellets.

- 所以乙烷裂解器是一个绝对巨大的施,它使用大量的能量来将乙烷分子裂解成乙烯,然后将它们变成些微小的塑料颗粒。

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