这是二甲醚的结构异构体。
建立了柴油机燃用二甲醚的机械式供油系统。
The supply system of dimethyl ether engine is founded in this paper.
综述了丙二醇甲醚合成催化剂研究的最新进展。
Researches in propanediol methyl ether synthesis catalysts were reviewed in this paper.
我国当前尚未有工业化生产叔戊基甲醚的装置。
The industrial TAME production unit hasn't been set up in China.
目前已有80多个国家批准了复方蒿甲醚的注册。
目的研究大黄酚和大黄素甲醚混合物的高效分离方法。
Objective To study the efficient and simple method of separation of chrysophanol and physcion.
与煤制油相比，甲醇和二甲醚具有明显的技术和经济优势。
Compared with oil produced by coal, methanol and DME have the obvious advantage in technology and economic.
概述了二甲醚的市场情况以及二甲醚生产技术的最新进展；
The market situation and newest development of production technologies of dimethyl ether are summarized.
对二甲醚与瓶装lpg调压器用橡胶膜片的相容性进行研究。
The consistency between dimethyl ether and rubber diaphragm in bottled LPG regulator is studied.
本文介绍了二甲醚的用途、市场前景、生产情况及存在的问题。
This paper introduced the use, market foreground, production status and existing questions of dimethyl ether.
简单介绍了二甲醚的用途及对解决能源和环境问题的重要意义。
Application and significance of dimethyl ether for solving the energy and environment problems are briefly introduced.
介绍了乙二醇单甲醚回收装置的工艺流程、操作控制及其应用效果。
The technological process and operational control of glycol monoethyl ether's recovery package and applied effect were introduced.
简述了二甲醚的工业生产方法及工艺特点，并指出了二甲醚的开发前景。
The industrial production method and technical characters of dimethyl ether were discussed, and the developed prospects were pointed out.
他们用青蒿素的一种衍生物——蒿甲醚代替青蒿素，协助改进了固定复方药。
They helped improve the fixed combination by replacing artemisinin with [one of its derivatives], artemether.
在乙腈、聚乙二醇存在下，用苯甲醚与硝酸铈铵反应合成了邻硝基苯甲醚。
In the presence of ethanonitrile and polyethylene glycol, anisole reacts with ammonium ceric nitrate to form o-nitroanisole.
文章介绍了二甲醚作为民用燃料及车用燃料的优越性及其在气雾剂中的应用。
This paper introduces the advantages of dimethyl ether as civil and vehicle's fuel and its application in aerosol.
两年后，超过50万名美国女性在使用炔雌醇甲醚片，但不是所有的人都有效。
Two years later, more than half a million American women are taking Enovid—and not all of them have cramps.
在试验的基础上，采用相关分析法研究了车用二甲醚燃料润滑性能的评定方法。
Lubricity evaluation method of dimethyl ether fuel was investigated by correlation analysis on the basis of experiments.
选用合适的热力学模型，对合成气直接合成二甲醚的反应进行了化学平衡分析。
Chemical equilibrium in direct synthesis of dimethyl ether from syngas was calculated and analyzed by using an appropriate thermodynamic model.
介绍了甲醇及二甲醚的生产现状和发展前景，叙述了二甲醚的制备方法及用途。
The production actuality and development foreground of methanol and dimethyl ether are introduced. The preparation methods and the use of dimethyl ether are recounted.
目的从虎杖中提取并分离蒽醌类成分大黄酸、大黄素、大黄酚和大黄素甲醚等。
Objective To extract and separate the anthraquinone compounds, such as rhein, emodin, chrysophanol, physcion, etc. from Rhizoma Polygoni Cuspidati.
将硫酸氢钠作为由乙二醇单甲醚和乙酸酯化合成乙二醇单甲醚乙酸酯的催化剂。
Sodium bisulfate was used as the catalyst for esterification of ethylene glycol mono-methyl ether and acetic acid to ethylene glycol monomethyl ether acetate.
但是三种抗疟药——青蒿素、青蒿琥酯和蒿甲醚——栓剂的有效性从未进行过比较。
But the three types of antimalarial available in suppository form - artemisinin, artesunate and artemether - have never been compared for effectiveness.
得出了二甲醚火焰传播速度与一次空气系数的关系曲线，并且在一次空气系数约为0。
The curve of relationship between flame speeds and the primary air ratio is got, and when primary air ratio is about 0.
介绍了碱式碳酸铅珠光颜料乙二醇甲醚法挤水转相生产工艺，对影响因素进行了研究。
The production technology of basic lead carbonate pearlescent pigment by pushing process, glycol methoxymethane method and inversing phase method were introduced.
简述了二甲醚的各种生产方法及各方面的工艺特点，并指出了二甲醚的广阔应用前景。
The methods of production and technology of dimethyl ether and dimethyl ether have a widely developing prospect.
进行苯甲醚的脱水实验，实验结果证实用干燥氮气除去苯甲醚中微量水的方法是可行的。
The experiment on anisole dehumidification was carried out. And the results showed that the way of drying anisole by dry nitrogen is proved feasible.
进行苯甲醚的脱水实验，实验结果证实用干燥氮气除去苯甲醚中微量水的方法是可行的。
The experiment on anisole dehumidification was carried out. And the results showed that the way of drying anisole by dry nitrogen is proved feasible.
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