有奖纠错
| 划词

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

乙烯和反式氯乙烯在红外光谱这个区域都无活性。

评价该例句:好评差评指正

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

红外光谱检测解产物是纯度很高对苯酯(DMT)单体和乙醇。

评价该例句:好评差评指正

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

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

评价该例句:好评差评指正

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?理进行合。

评价该例句:好评差评指正

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、丙烯和少量非共轭烯烃物。

评价该例句:好评差评指正

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

以醋和乙醇单乙醚为原料,活性白土负载磷钨作为催化剂,合成了乙醇单乙醚醋酯。

评价该例句:好评差评指正

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

研究了以乙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、反应温度影响。

评价该例句:好评差评指正

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损伤程度与焊接性关系。

评价该例句:好评差评指正

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——异戊烯、环戊烯、戊间烯。

评价该例句:好评差评指正

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性,结合一些钙拮抗剂含乙胺结构特征,设计合成了5个酚苄明衍生物。

评价该例句:好评差评指正

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色谱仪醇20M色谱柱对氯乙醇定量测定方法。

评价该例句:好评差评指正

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

将乙肟溶于乙醇,通入氯气,生成稳定氯乙肟溶液,这种方法制备氯乙肟贮存稳定,产率高。

评价该例句:好评差评指正

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醇、乙醇、乙醇等产品方法,指出了合成气是石油化工新原料。

评价该例句:好评差评指正

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,再与乙醇缩醛化得到3-溴代丁醛缩乙醇,收率80.8%。

评价该例句:好评差评指正

The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.

芳基烷在有机溶剂介质中、碱催化下氧化缩合反应,是合成苯乙烯(烷)类化合物重要途径.

评价该例句:好评差评指正

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,研究了乙烯共单体含量变化对VERSIFY共物结晶性能、力学性能和粘弹性能影响。

评价该例句:好评差评指正

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以上分分离。

评价该例句:好评差评指正

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,例如次氮基三乙酯(NTA)或者是乙胺四乙酯(EDTA),这些螯合剂易于形成水溶性金属螯合物。

评价该例句:好评差评指正

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性,而凋谢花枝易产生乙烯加速衰败。

评价该例句:好评差评指正

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司乙烯公司乙烯装置脱烷塔运行主要因素,并针对乙烯装置改造后脱烷塔存在问题进行了探讨。

评价该例句:好评差评指正

用户正在搜索


Bolshevik, Bolsheviki, Bolshevism, Bolshevist, Bolshevistic, Bolshevize, bolshie, bolshy, bolson, Bolsover,

相似单词


3G, 401(K), a,

声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。

Scishow 精选系列

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

比如说防冻剂里面的乙二醇。

评价该例句:好评差评指正
科学60秒 听力 2015年1月

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放乙烯,而乙烯反过来速果实的成熟。

评价该例句:好评差评指正
机智生活百科

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

就像乙烯一样,众所周知,天气也蔬果成熟。

评价该例句:好评差评指正
机智生活百科

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

香蕉在成熟过程中产生乙烯气体。

评价该例句:好评差评指正
科学60秒 听力 2015年1月

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将有待成熟的果实放在密闭容器中放用水果做成的乙烯样本。

评价该例句:好评差评指正
Asap SCIENCE 精选

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

例如,当水果开始成熟时,它们放一种叫做乙烯的化学物质。

评价该例句:好评差评指正
CNN 10 学生英语 2022年11月

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

这是因为香蕉是熟型水果,它们产生大量的乙烯。

评价该例句:好评差评指正
科学60秒 听力 2015年1月

At maximum ethylene release, the fruit reaches peak ripeness: ideal taste and texture.

乙烯放达到峰值,果实也达到最佳成熟期: 拥有诱人口感和完美质地。

评价该例句:好评差评指正
Crash Course 植物学篇

Besides bananas, what other fruits emit a ton of ethylene?

除了香蕉,还有什么水果放超级多乙烯?

评价该例句:好评差评指正
Crash Course 植物学篇

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

让我们从乙烯开始——唯一一种植物激素是气体。

评价该例句:好评差评指正
TED演讲(视频版) 2022年10月

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,比如乙烯和丙烯。比如乙烯和丙烯。

评价该例句:好评差评指正
科学60秒 听力 2015年1月

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

这种模式随着时间的推移而改变,且与水果放的乙烯保持一致。

评价该例句:好评差评指正
SciShow - Chemistry

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

像乙二醇一样,防冻剂里的东西?

评价该例句:好评差评指正
厨房美味大比拼

Fruits, like they actually like release like ethylene gas.

- 水果,就像它们实际上喜欢放乙烯气体一样。

评价该例句:好评差评指正
此间的地球

Cracking ethane into ethylene also carries a huge carbon footprint.

将乙烷裂解成乙烯也产生巨大的碳足迹。

评价该例句:好评差评指正
Crash Course 综

And the simplest of those is ethene, also known as ethylene.

其中最简单的是乙烯, 也称为乙烯。

评价该例句:好评差评指正
夜班医生

The alcohol competes with the ethylene glycol for the receptors...

酒精与乙二醇争夺神经末梢。

评价该例句:好评差评指正
TED演讲(视频版) 2022年9月

And this process of breaking down emits powerful gases such as methane, ethylene and CO2.

而这个分解过程放出强大的气体,例如甲烷、乙烯和二氧化碳。

评价该例句:好评差评指正
科学60秒 听力 2015年1月

Meaning these images could be a good proxy for ethylene measurements, and let farmers know the best time to harvest.

而这些图像可以作为衡量乙烯的很好标准,帮助农民知晓收获的最佳时机。

评价该例句:好评差评指正
此间的地球

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%。

评价该例句:好评差评指正
载更多

用户正在搜索


bombycin, bombycine, bombycology, bombykol, bombyx, bombyx mori, bombyxin, bomensal, bomeplasty, bometolol,

相似单词


3G, 401(K), a,
  • 微信二维码

    关注我们的微信

  • 手机客户端二维码

    下载手机客户端

赞助商链接