Uranium concentration by organic matter is displayed in each stage of coalification.
有机质对铀的富集作用表现在成煤作用的各个阶段。
These data indicate large difference in damage of coalbed of different coalification stage.
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.
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。
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