The coalbed methane content is the most important index for the evaluation of coalbed methane.

煤层甲烷含气量是评价煤层气的最重要指标。

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Coal bed methane content is fairly high which threatened safety mining in some areas in Shuangyashan mining area.

双鸭山矿区局部区域煤层瓦斯含量较高，威胁到安全生产。

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The actual methane yield and methane content of biogas in anaerobic digestion were analysed and studied in this paper.

本文对厌氧消化中实测甲烷产量及沼气中甲烷含量两个问题从理论角度作了分析探讨。

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By some estimates, methane hydrates contain more energy content than all other known fossil fuels combined.

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This gas contains approximately 80% of the original energy content of the coal, and is a combination of hydrogen, carbon monoxide, carbon dioxide, and methane.

FORBES: Underground Coal Gasification: A Trend Worth Watching