Is the only production of high methane content of cyano-dithio enterprises. 是国内唯一生产高含量二硫氰基甲烷的企业。
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。
The results show that the COD removal rate of the wastewater that was treated by USAB can reach as high as 55% and the methane content is 54.27%. 结果表明，经USAB处理工艺后废液中的COD去除率达到55%25，甲烷气体含量可达54.
The reserve estimation method of CBM reservoir is different from that of conventional gas reservoir and the boundary of CBM reservoir is determined by methane content contours. 煤层气藏的储量计算不同于常规天然气，其含气边界的确定是以煤层含气量等值线确定的。
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。