ethylenes乙烯属烃ethylenen.乙烯ethyleneimine resin[化] 乙烯亚胺树脂ethylene cyanhydrin乙撑氰醇ethylene bichloride[医] 二氯化乙烯ethylene difluoride二氟化乙烯ethyleneamide oxime次乙基胺肟ethylene oxide unit[化] 环氧乙烷单元ethylene separation乙烯分离ethylene - doping乙烯掺杂ethylenedioxy group次乙二氧撑ethylene iodohydrin[化] 2-碘乙醇