对构造与煤层沼气含量的关系进行了详尽的分析，论述了构造控制沼气含量的理论。
Throngh the detailed analysis of the relations between geology construction and coal seam gas content, the theory, that geology construction controls coal seam gas content, has been put forward.
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。
The actual methane yield and methane content of biogas in anaerobic digestion were analysed and studied in this paper.
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。
Methane content of the gas produced and the methane producing rate were determined by the total number of methane producing bacteria developed.
结果表明，使用驯化过的接种物有利于提高沼气产气量和产气中甲烷的含量，并能最大限度地保留沼液中的营养成分。
Results showed that both the yield of biogas and its methane yield were increased when the cultivated inoculation was used. The nutrient of the fermented material can be maintained.
结果表明，使用驯化过的接种物有利于提高沼气产气量和产气中甲烷的含量，并能最大限度地保留沼液中的营养成分。
Results showed that both the yield of biogas and its methane yield were increased when the cultivated inoculation was used. The nutrient of the fermented material can be maintained.
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