The permeability value is magnitudes 2 –4 lower for the laboratory scale against the engineering scale.

确定实验室尺度较工程尺度而言,煤岩介质渗透率低2～4个数量级.

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The paper presents the method that makes sure the reservoir engineering scale and flowing water loses.

本文提出了一种确定出、入水库工程规模,水库蒸发、渗流水损失的方法.

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