The development of Coal bed Methane (CBM) has made greater progress in recent years.

近年来，煤层气开发取得了较大进展。

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Therefore, the development and utilization of coal bed methane is imperative.

因此，开发利用煤层气势在必行。

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Therefore, the development and utilization of coal bed methane is imperative.

因此，开发利用煤层气势在必行。

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