coal-formed gas meaning in English

煤成气

Research on gas accumulation process of coal - formed gas pool in bajiaochang gas field
八角场气田煤型气藏的成藏过程研究
Distribution and burying characteristics of the permo - carboniferous system and the coal - formed gas source rock in jiyang depression
济阳坳陷石炭二叠系埋藏条件及煤型气源岩分布特征
The deep gas of dongpu sag can be divided into three types such as coal - formed gas , petroliferous gas and combination gas , which have different space distribution for each type
东濮凹陷深层气可分为煤成气、油型气和混合气3种类型，不同类型的深层气具有不同的空间分布规律。