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词汇 ethylenes
释义 ethylenes 英'eθɪliːnz美'eθɪliːnz
基本英英
乙烯属烃¹⁰⁰原型ethylene的复数
名词 ethylene:
a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
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