ethylenen.乙烯ethylene diamine乙二胺ethylene dithiol乙二硫ethylene acrylic乙烯丙烯酸ethylene product乙烯产品ethylene mitrate[机] 硝酸次乙酯ethylene polymer乙烯高聚物ethylenethiourea亚乙基硫脲, 乙撑硫脲ethylene telomer乙烯调聚物ethylene-imine乙撑亚胺, 氮丙啶, 氮杂环丙烷ethylene cyanide乙撑二氰