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

介绍了乙烷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.

气体分馏装置脱乙烷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烷、乙烷、异丁烷和异戊烷。

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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.

丙酮、苯、甲苯、二硫化碳、二乙烷,微乙醇和乙醚,不水和汽油。

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

以苯胺和溴乙烷为原料,用四乙基氢化铵作相移催化剂,在常压下合成N,N二乙基苯胺。

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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,丙烷的大丙烷、丁基醚乙烷

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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,少量副产物是乙烷和苯乙醛等。

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

用四乙基化胺作相移催化剂可在常压下由苯胺和溴乙烷合成N,N-二乙基苯胺。

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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、六乙烷和碳粉制备铝钛碳晶粒细化剂的新方法。

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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.

空气中四乙烷用活性炭管采集,二硫化碳解吸,经GDX-103色谱柱分离,氢火焰离子化检测器检测。

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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.

对四官能树脂[1,1,2,2-四(对羟基苯基)乙烷四缩水甘油醚]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.

以二乙烷与植物油脂肪酸等为原料,通过氨解、酯化、羟甲基化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.

不过其他剂(如丙酮和三三氟乙烷)就不会,操作适用回收孢子接种物。

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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乙烷及氢化钠反应,以甲苯为稀释剂,用一步法成功地合成了乙基纤维素。

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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.

采用工业脂肪酸和乙烷加成法研制成乳化剂,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.

本方法用乙烷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、乙基麦芽酚生产中的碱式溴化镁废渣为原料制取溴;以溴、硫和乙醇合成溴乙烷的方法。

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少儿百科之歌

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

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.

乙烷转化为塑料的基础设施已经扩大。

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学生科学报

Their liquid is not water but ethane and methane.

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

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

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)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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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中廉价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

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.

然后设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.

一旦从水力压裂中收乙烷就会被送到裂解厂。

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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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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中发现了液态甲烷和乙烷

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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

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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设施,使用大量的能量来将乙烷分子裂解成乙烯,然后将们变成些微小的塑料颗粒。

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