Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
与石油矿藏伴生的气态烃混合物,主要含甲烷,以及少量乙烷、丙烷和丁烷,主要用作燃料。
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与石油矿藏伴生的气态烃混合物,主要含甲烷,以及少量乙烷、丙烷和丁烷,主要用作燃料。；天然气
A mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.
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与石油矿藏伴生的气态烃混合物,主要含甲烷,以及少量乙烷、丙烷和丁烷,主要用作燃料。
A mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.
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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.