They are capping products of allyl poly-alkoxyl methyl ether and aliphatic alcohol ether alkyl or epoxy. 本系列产品为烯丙基聚烷氧基甲基醚化封端产品及脂肪族醇醚的烷基或环氧基封端产品，提高了聚醚改性硅油的质量。
Researches in propanediol methyl ether synthesis catalysts were reviewed in this paper. 综述了丙二醇甲醚合成催化剂研究的最新进展。
Through the new example of its applications, merits of dimethyl ether used as a new aerosol propellant were demonstrated. 通过几种新型应用实例，论证了二甲醚作为抛射剂的优点。
