The instrument has been applied in many coal mines, and the well-content effect gotten also.
该设备已在很多煤矿应用，取得了十分满意的效果。
The effect of sulfur content in coal on the power generation is discussed.
论述了煤中含硫量对电力生产的影响。
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 carbon content of coal produced inside the higher quality of gas.
煤质里面的含碳量越多产生的煤气质量越好。
The carbon content of coal produced inside the higher quality of gas.
煤质里面的含碳量越多产生的煤气质量越好。
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