... specific output 单位输出 specific permeability 比渗透率 specific power 单位功率，比功率 ...
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结果表明：RPC具有非常低的孔隙率，其气体渗透系数比传统混凝土的低1 ~ 2个数量级。
Results indicate that RPC possesses very low porosity and its air permeability is lower by 1-2 magnitudes than that of conventional concrete.
相同孔隙度条件下，砂岩的渗透率比泥岩大得多。
The permeability of sandstone is much bigger than that of mudstone under the same condition.
井底附近地层渗透率降低比改善对调查半径的影响要大。
If skin factor of formation damage is more, its radius of investigation is less.
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