这些数据反映水基压裂液对不同煤化阶段煤层的伤害程度有较大差别。

These data indicate large difference in damage of coalbed of different coalification stage.

youdao

这些数据反映水基压裂液对不同煤化阶段煤层的伤害程度有较大差别。

These data indicate large difference in damage of coalbed of different coalification stage.

youdao