Finally the calculation method and formula of coal methane content and pressure are presented by using the emission rate from broken coal.

最后提出了利用煤屑解吸瓦斯流量测算煤层瓦斯压力和瓦斯含量的计算方法和计算公式。

youdao

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。

youdao

Methane content of the gas produced and the methane producing rate were determined by the total number of methane producing bacteria developed.

沼气中甲烷百分含量和日产甲炕效率的高低与产甲炕细菌菌数有关。

youdao

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