一是机油的清洁性：例如合成机油的基础油聚烯类（Poly-Alfa-Olefine）或酯类(Easter)，由于本身具有清净功能，会把积聚在活塞环和汽缸壁的胶质溶解和清除，使活塞环恢复弹性，进而提高汽缸体的密封度...
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不像相关的聚烯类、利霉菌素和非律平，那他霉素不能改变质膜的通透性。
Unlike the related polyenes, nystatin and filipin, pimaricin does not change the permeability of the plasma membrane.
这些化合物能均聚反应，亦易与苯乙烯、甲基丙烯酸甲酯及丙烯腈等乙烯类单体共聚合，得有色的高聚物。
These colored compounds can be homopolymerized and copolymerized with most vinyl monomers such as styrene, methyl methacrylate and acrylonitrile, to give the corresponding colored polymers.
研究利用醋酸乙烯酯与其它烯类单体共聚，并在此基础上通过TEM、DSC等多种表征手段分析了不同醇解度的聚乙烯醇对聚醋酸乙烯乳液性能产生的影响。
In this article by copolymerization of VAc and other vinyl monomers, the effects of PVA on the properties of the PVAc emulsion were discussed through many tests such as TEM, DSC and so on.
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