ethylene

名词 ethylene:

1. a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
   同义词：ethene

1. A substance, often a liquid such as ethylene glycol or alcohol, mixed with another liquid to lower its freezing point.
   防冻剂，防冻液，抗凝剂一种物质，通常是液体，如乙二醇或酒精，和另一种液体混合来降低冰点

eth.yl.ene

n.（名词）
A colorless, flammable gas, C2H 4, derived from natural gas and petroleum and used as a source of many organic compounds, in welding and cutting metals, to color citrus fruits, and as an anesthetic. Also called ethene
乙烯：一种无色易燃气体，C2H 4，可从天然气和石油中获得，用作许多有机化合物的来源，用于焊接和切割金属，柑桔属水果的着色，以及用作麻醉剂 也作 ethene

【引伸】
eth.yle.nic