英语词汇天然气由甲烷是什么意思，天然气由甲烷的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-电脑手机教程网

单词	天然气由甲烷
释义	DEFINITIVE EXAMPLES 权威例句Natural gas is composed of methane, ethane, propane and butane.天然气由甲烷、乙烷、丙烷和丁烷组成。剑桥国际
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