eth.anen.(名词)A colorless, odorless gaseous alkane, C2H ', that occurs as a constituent of natural gas and is used as a fuel and a refrigerant. 乙烷:一种无色无味的气态链烷,分子式为C2H ',是天然气的组成成分,可用作燃料或致冷剂 来源:eth(yl) eth(yl)-ane -ane