1·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。
2·A total of 48 components in UCR were identified, including hydrocarbons (31 kinds), alcohols (6 kinds), aldehydes (4 kinds), ethers ( 1 kinds), esters (3 kinds) and other components (3 kinds).
实验鉴定出不浸泡米饭的风味成分共48种，其中烃类31种，醇类6种，醛类4种，醚类1种，酯类3种，其他3种；
3·Lecture 12: Alcohols, Ethers, Epoxides, Sulfides.
第十二堂：醇类，醚类，环氧化物，硫化物。
4·Lecture 11: Alcohols, Ethers, Epoxides, Sulfides.
第十一堂：醇类，醚类，环氧化物，硫化物。