| 释义 |
ethers 英'iːθərz美'iːθərz COCA¹¹⁷⁵²⁴BNC⁶⁹⁰⁹³
基本英英例句
民族精神¹⁰⁰原型ether的复数
名词 ether:
the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodiesany of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atoma medium that was once supposed to fill all space and to support the propagation of electromagnetic wavesa colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic And the properties and application in environmental science of crown ethers, polymerized crown ethers and Cyclodextrin Containing Polymer were reviewed in this paper.
概述了冠醚、冠醚高分子及环糊精高分子的性质和在环境科学中的应用现状。 cnki
The recent progress of application of liquid crystalline crown ethers, carbon nanotube and water-soluble calixarene on analytical chemistry was reviewed.
综述了液晶冠醚、碳纳米管、水溶性杯芳烃在分析化学中应用的新进展。 chemyq
The activity of NKC-1A catalyst for synthesis of propylene glycol ethers is high under room temperature. The activation energy of NKC-1A catalyst was determined.
结果表明， NKC-1A催化剂在室温下，对合成丙二醇醚类具有较高的活性，测定了该催化剂的活化能。 cnki
The etherification process for FCC gasoline is to react methanol with the isoolefines in FCC gasoline to form methyl tert- alkyl ethers on a resin type catalyst, so as to enhance the octane number.
催化裂化汽油醚化工艺是使汽油中异构烯烃与甲醇，在树脂型催化剂作用下醚化生成甲基叔烷基醚类，使汽油辛烷值提高。 cnki
The polymers and pigments have been discussed previously. Coalescing solvents are water-miscible glycol ethers which aid in the water- dispersibility of the resin and enhance coating uniformity.
聚合物和颜料在前面已经讨论过，混合溶剂是水溶性的乙二醇醚类，它有助树脂在水中的水分散和提高涂膜的均一性。 dugoogle
The synthesis of propylene glycol ethers by reaction of propylene oxide with lower aliphatic alcohols on solid acid NKC-1A catalyst were studied.
研究了环氧丙烷与脂肪醇在 NKC-1A固体酸催化剂上合成丙二醇醚类的反应。 chemyq
As an important octane booster in unleaded gasoline, the need for ethers becomes more and more.
醚类作为重要的高辛烷值调和组分，需求量日益增加，醚化催化剂的研究也越来越活跃。 ilib
In recent years, the research, on solvent extract systems of lithium was mainly centralized on four aspects: alcohols, alkyl phosphine, blended ion extractants and crown ethers.
近年来，对锂溶剂萃取体系的研究主要集中在四个方面：醇类和酮类、烷基膦和磷酸酯类、混合离子萃取剂类以及冠醚类。 cnki
In this paper, the UV-Vis spectra of more than30 CCT formed from oxygen with organic compounds, including ethers, alcohols, amines as well as hydrocarbons, were measured by the comparison method.
本文采用比较法测定了醚类、醇类，胺类、烃类等三十多种有机化合物的 CCT光谱。 cnki
In response, enterprising chemical companies have stepped up with a host of alternative solvents, including liquid carbon dioxide, silicones, propylene glycol ethers, and improved hydrocarbons.
在回应，积极进取的化学品公司已加强了与东道国的替代溶剂，包括液体二氧化碳，有机硅，丙烯乙二醇醚，并改善了碳氢化合物。 ganxi-ganxiji
It was found that the coke precursor was mainly three ring aromatic compounds with a few of aromatic ethers.
实验结果表明：焦炭前身物主要由三环取代芳香化合物组成，并有芳醚类化合物存在。 cnki
Lecture 12: Alcohols, Ethers, Epoxides, Sulfides.
第十二堂：醇类，醚类，环氧化物，硫化物。 myoops
Lecture10: Alcohols, Ethers, Epoxides, Sulfides.
第十堂：醇类，醚类，环氧化物，硫化物。 myoops
Lecture11: Alcohols, Ethers, Epoxides, Sulfides.
第十一堂：醇类，醚类，环氧化物，硫化物。140.138.2.232
My article pops up where only a short while prior, it existed only in the ethers, in the Universal Intelligence, in some deep part of my sub- conscious, in my soul.
我的文章立刻荣登前几位。但对我，它只是存在于苍天中，世界的精英中，在我最深的潜意识里，在我的灵魂里。 yeeyan
Organic anti- bacterial agent more varieties, such as organic compounds, metal halide, effects of thiazole, quaternary ammonium salts and diphenyl ethers, organic nitrogen compounds, and so on.
有机抗菌剂品种较多，如有机金属化合物、卤化物、异噻唑、季胺盐、二苯醚类化合物、有机氮化合物等。 texclo
Other amino- alcohols, their ethers and esters, other than those containing more than one kind of oxygen function; salts thereof.
其它胺醇含氧官能超过一种以上者除外，其醚类及酯类；其盐类。 tdcinfo.sme.net.cn
Specifically for the petroleum industry, this term refers to oxygen containing compounds, such as ethers and alcohols, added to fuels to reduce carbon monoxide in the engine exhausts.
特别对石油工业来说，此术语是指加入燃料以减少发动机一氧化碳排放物的含氧化合物，例如醚类和醇类。 www.infopetro.com.cn
The dissertation mainly involves in synthesis of chiral aza crown ethers and includes the following aspects of content:1. Synthesis and structural characterization of chiral aza crown ethers.
本论文主要研究了新型手性氮杂冠醚的合成，包括以下几方面内容：1、手性氮杂冠醚的合成与结构表征。 fabiao
The progress of synthesis and biological activity studies of the ester, amides, ethers and ketones of the ferulic acid was reviewed.
本综述了合成阿魏酸及其酯类，酰胺类，酮类和醚类等衍生物的研究状况。 magsci
This paper examined the cellulose esters and cellulose ethers application in pharmaceutical coatings and reviewed their structure- property relations and researching aspects in recent yeas.
结合近年来国内外研究现状，综述了天然纤维的化学结构、性能及在医药辅料领域的应用方向。 chemyq |