Fermentation is a biogenic process.
发酵是一种生物化学反应过程。
The concentration of biogenic gas is mainly controlled the trap.
生物气富集的主要控制因素为圈闭。
Secondary biogenic gas is usually associated with late stage groundwater system and bacteria activity.
次生生物成因气常与后来的煤层含水系统的细菌活动有关。
Secondary biogenic gas is usually associated with late stage groundwater system and bacteria activity.
次生生物成因气常与后来的煤层含水系统的细菌活动有关。
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