The methane content detecting is very important for coal mine production.
甲烷含量的检测对煤矿的安全生产等有着重大的意义。
The coalbed methane content is the most important index for the evaluation of coalbed methane.
煤层甲烷含气量是评价煤层气的最重要指标。
Coal bed methane content is fairly high which threatened safety mining in some areas in Shuangyashan mining area.
双鸭山矿区局部区域煤层瓦斯含量较高，威胁到安全生产。
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。
One natural gas field is in desert, it is a kind of condensate natural gas reservoir that the condensate oil content is lower and the methane content is higher.
某气田地处沙漠地区，属凝析油含量特低、甲烷含量较高的凝析气藏。
The methane content of the biogas was similar and was 50% in the hydrolysis reactor and 70% in the methanogenesis reactor.
两种麦草产生的生物气中的甲烷含量大致相同，在水解反应器中后期为50%左右，在甲烷反应器中为70%左右。
Methanotrophic microorganisms play an important role in regulating global methane content, and landfill cover soil is proved to have high capacity of methane oxidation.
甲烷氧化微生物在调节全球甲烷平衡中起着重要作用。垃圾填埋场覆土具有相当强的甲烷氧化能力。
The reason of increasing methane content at outlet of secondary reformer is described; Author thinks that its reason is caused by the secondary reformer air distributor.
阐述了二段炉出口甲烷含量升高的原因，认为是二段炉空气分布器所致。
CBM well group drainage and mining testing data indicated that the coupling of methane content, fissure development extent and hydrodynamic condition is necessary terms to ensure stead...
煤层气井组排采试验资料表明，甲烷含量、裂隙发育程度、水动力条件三者的耦合是保证煤层气井稳定高产的充分必要条件。
Methane content is high and spontaneous combustion occurred frequently in Yangquan coal mines, which have a serious influence upon the safe production in the mines.
阳泉矿区煤层瓦斯含量高，井下煤层自燃频繁，严重影响了煤炭安全生产。
Methane content is high and spontaneous combustion occurred frequently in Yangquan coal mines, which have a serious influence upon the safe production in the mines.
阳泉矿区煤层瓦斯含量高，井下煤层自燃频繁，严重影响了煤炭安全生产。
应用推荐