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单词乙基
例句 DEFINITIVE EXAMPLES 权威例句〔Norplant〕A trademark used for the drug levonorgestrel.诺普朗特:左旋去黄体酮乙基乙基炔诺酮药剂的商标美国传统〔antiknock〕A substance, such as tetraethyl lead, added to gasoline to reduce engine knock.抗震剂:一种加在汽油中可以减轻发动机震动的物质,如甲乙基美国传统〔ethylate〕To introduce the ethyl group into (a compound).使乙基化:把乙基引入(一化合物)美国传统〔urethane〕Any of several esters, other than the ethyl ester, of carbamic acid.聚氨酯:一种氨基甲酸中除乙基酯以外的酯美国传统〔white gasoline〕Gasoline containing no tetraethyl lead.无铅汽油:不含四乙基铅的汽油美国传统
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