【化】 亚乙基丙酮; 甲基·丙烯基酮; 甲基·丙烯基甲酮

ethylidene norbornene

ethylidene diacetate

ethylidene-urea

glycol ethylidene-acetal

ethylidene (di)fluoride

ethylidene dichloride

ethylidene lactic acid

ethylidene【有化】