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35. Ethylene and trans-dichloroethylene are both inactive in the infra-red in this region .

乙烯和反式二氯乙烯在红外光谱这个区域都无活。

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The main products of PET supercritical methanolysis are dimethyl terephthalate(DMT) and ethylene glycol(EG).

红外光谱检测解聚产物是高对苯二甲酸二甲酯(DMT)单体和乙二醇。

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Stearone glycol fumaric acid (SGF) was synthesized with maleicanhydride, cinnamyl alcohol and ethylene glycol.

由于烯二酸酐经醇解转型酯化途径合成了对皮肤无过敏反应反丁烯二酸桂醇甘醇酯(SGF)。

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Epoxides, episulphides and ethylene imines also polymerize via similar cyclic onium ion mechanisms.

环氧化合物,环硫化合物和乙烯亚胺也可以按类似于环氧?睦胱拥幕?理进行聚合。

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This article analyzes main factors that affect the actual operation of Demethanizer,and discusses the problems existing in the Demethanizer after the revamp of ethylene plant in Fushun,CCPC.

分析了影响中国石油抚顺石化分公乙烯公乙烯装置脱甲烷塔运行主要因素,并针对乙烯装置改造后脱甲烷塔存在问题进行了探讨。

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Catches an illness the flowering branch to have the mutual infectiousness, but died of old age the flowering branch is easy to have the ethylene acceleration deterioration.

染病花枝具有相互感染,而凋谢花枝易产生乙烯加速衰败。

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3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.

在洗衣粉中掺入螯合剂,例如次氮基三乙酸酯(NTA)或者是乙二胺四乙酸酯(EDTA),这些螯合剂易于形成水金属螯合物。

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Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是乙烯生产过程中分离工段一个工艺步骤,其目是将C_3和C_4以上组分分离。

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The effect of ethylene comonomer content on the crystallization, mechanical and viscoelastic properties of VERSIFY copolymers was studied by DSC, DMTA, POM and WAXD.

通过DSC,DMTA,POM和WAXD等手段,研究了乙烯共聚单体含量变化对VERSIFY共聚物结晶能、力学能和粘弹能影响。

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Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.

巴豆醛先与溴化氢加成,再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇,收率80.8%。

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The article has introduced the method such as methanol, ethanol, ethylene glycol, pointing out synthol is the new raw material of oildom.

介绍了由合成气为原料制取甲醇、乙醇、乙二醇等产品方法,指出了合成气是石油化工新原料。

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The stable organic solution of dichloroglyoxime was prepared in high yield by chlorine aerated into the ethylene glycol solution of glyoxime.

将乙二肟于乙二醇,通入氯气,生成稳定二氯乙二肟液,这种方法制备二氯乙二肟贮存稳定,产率高。

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According to the ethylene diamine moiety in the structure of some calcium antagonists,we designed and synthesized 5 unreported phenoxybenzamine derivatives.

利用酚苄明结构中氯乙胺基活,结合一些钙拮抗剂含乙二胺结构特征,设计合成了5个酚苄明衍生物。

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The determination method of ethylene chlorohydrin content by u sing FID chromatograph polyethylene glycol 20M chromatographic column was introd uced.

介绍了采用FID色谱仪聚乙二醇20M色谱柱对氯乙醇定量测定方法。

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Abstract: The C5 Fraction derived from ethylene steamcracker contains some very useful components, isoprene, cyclopentadiene and piperylene.

摘 要: 来自裂解乙烯C5馏份含有非常有用化工原料——异戊二烯、环戊二烯、戊间二烯。

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Ethylene glycol monoether acetate are synthesized from acetic acid and ethylene glycol monoethyl ether with supported phosphotungstic acid catalyst.

以醋酸和乙二醇单乙醚为原料,活白土负载磷钨酸作为催化剂,合成了乙二醇单乙醚醋酸酯。

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The relation of internal microstructure damage degree of furnace tube in a ethylene pyrolyzer with weldability was studied.

研究了乙烯裂解炉服役炉管材料内部组织损伤程与焊接关系。

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Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭二烯烃共聚物。

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Preparation of ethylene bis stearamide using stearyl chloride and ethylenediamine (EDA) as raw materials has been studied.

研究了以乙二胺和硬脂酰氯为原料制备乙撑双硬脂酰胺反应,讨论了原料配比、反应时间、反应温影响。

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科学60秒 听力 2015年1月合集

Meaning they release ethylene gas as they mature—and the gas in turn accelerates ripening.

这其中的奥妙在于随着这些果实的成熟会释放,反过来会加速果实的成熟。

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Scishow 精选系列

Like ethylene glycol, the stuff that's in antifreeze?

比如说防冻剂里面的二醇。

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机智生活百科

Just like ethylene, natural gas is known to increase the ripening process.

就像一样,众所周知,天然气也会加快蔬果成熟。

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科普小杂文

These are combined in a chemical reaction to create ethylene dichloride, which is turned into a gas, and then, through a process called " polymerization" , it becomes a fine, white powder called polyvinyl chloride, or PVC.

它们在化学反应中结合,生成二氯,变成气体,然后,通过一个叫做“聚合”的过程,变成一种白色的细粉末,叫做聚氯,简称PVC。

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Asap SCIENCE 精选

For example, when fruits start to ripen, they release a chemical called ethylene.

例如,当水果开成熟时,它们会释放一种叫做的化学物质。

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CNN 10 学生英语 2022年11月合集

That's why a lot of times when people are like, hey, you want to ripen something, put it in a bag with a banana, because bananas produce a lot of ethylene.

这就是为什么很多时候,人们会说,嘿,想让什么东西成熟,就把它和香蕉放在一个袋子里,因为香蕉会产生大量的。

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Osmosis-泌

A few of the common ones being aminoglycosides—a group of antibiotics, heavy metals like lead, myoglobin released from damaged muscles, ethylene glycol—essentially anti-freeze which is naturally sweet tasting and therefore a risk for poisoning children, radiocontrast dye, and uric acid.

其中一些常见毒素是氨基糖苷类抗生素、重金属如铅、肌肉受损释放的肌红蛋白、二醇、放射性对比剂以等;其中二醇本质上是防冻剂,有甜味,因此是毒害孩子的危险因素。

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地球实验室

Once PET plastic is broken down into its component parts, terephthalic acid, and ethylene glycol, it can then be recycled into new plastic, but it doesn't necessarily have to be plastic.

一旦 PET 塑料被分解成其组成部分(对苯二甲和二醇),就可以回收利用,制成新的塑料,但不一定非得是塑料。

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Crash Course 植物学篇

And it turned out, the ethylene released from burning gas lamps could keep plant cells from expanding, which is a huge part of plant growth.

事实证明,燃烧煤气灯释放的可以阻止植物细胞的扩张,这是植物生长的重要组成部分。

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中高级英语短文

Some vegetables and many fruits produce ethylene gas, which can cause many other vegetables to spoil more quickly, though some are unaffected.

一些蔬菜和许多水果都会释放气体,这种气体会导致许多其他蔬菜更快变质,但也有一些蔬菜不受影响。

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PBS趣味科普

It's nice for us at the grocery store, but ethylene helps plants by synchronizing ripening, to draw in hungry seed-dispersing animals.

这在杂货店对我们来说很好,但帮助植物通过同步成熟来吸引饥饿的种子传播动物。

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Scishow 精选系列

Plastic is basically just a long chain of molecules, and when it's exposed to sunlight, UV radiation starts to break that chain down into smaller molecules like methane and ethylene, in a process called off-gassing.

塑料是由一长串分子组成的,当阳光照射塑料时,紫外线会将分子链分解成更小的分子,比如甲烷和,这个过程叫做脱附。

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机智生活百科

This yellow fruit is known for producing ethylene gas while it gets ripe.

香蕉在成熟过程中会产生气体。

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科普小杂文

Well, vinyl is a plastic made from two basic compounds: chlorine, which is also found in salt, and ethylene which is found natural gas.

氯是一种由两种基本化合物制成的塑料:盐中发现的氯,和天然气中发现的。

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CNN 10 学生英语 2022年11月合集

This is because bananas are climacteric foods, which means they produce a lot of ethylene.

这是因为香蕉是后熟型水果,它们会产生大量的。

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TED演讲(视频版) 2022年10月合集

Beyond nylon, we're also looking into production processes to manufacture other chemicals like ethylene and propylene.

除了尼龙,我们还在探索 其他化学品的生产工艺,比如和丙。比如和丙。

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Crash Course 植物学篇

Let's start with ethylene — the only plant hormone that's a gas.

让我们从开——唯一一种植物激素是气体。

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科学60秒 听力 2015年1月合集

Today's high-tech farmers might sample the ethylene released by the fruit, as it sits in an airtight container.

如今掌握高科技技术的农民们也许会将有待成熟的果实放在密闭容器中然后释放用水果做成的样本。

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科学60秒 听力 2015年1月合集

That pattern changed over time, right in step with the fruit's release of ethylene.

这种模式会随着时间的推移改变,且与水果释放的保持一致。

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Crash Course 植物学篇

And if you keep your green tomato next to a bunch of bananas, ethylene will deliver you a ripe tomato very soon.

如果你把一个绿番茄放在一串香蕉旁边,很快就会带给你一个成熟的番茄。

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