Coalseams

基本解释

The migrating methane by cross-borehole in coalseam is used in this condition.
交又钻孔抽放本煤层瓦斯正是在这种条件下产生的。
HDPE with fire retardance and antistatic property has been developed and used to make gas drainage pipe in the coalseams.
研制了具有阻燃及抗静电性能的HDPE,并将其用于制作煤层瓦斯抽放管。
Abstract There is coalseam methane in coalbed and coal bearing sequences in the study area.
在煤层和煤系地层中，产生并赋存着煤层气。
This paper uses the numerical theory,constructs the math model of the effect of coalseam injection prediction,and gives an example of prediction.
本文应用数量化理论，给出了如何建立煤层注水效果的预测数学模型，并结合实例，进行了预测。
But because of the different conditions of the coal existing state, the migration effect is not good in coalseam in some coal mines.
但是，由于煤的赋存条件千差万别，有些煤矿本煤层抽放效果一直不很理想。