In this paper, the method of teeth layer specific permeability was briefly developed.

本文简要地介绍了作者提出的齿层比磁导法。

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In connection with specific geological conditions and study object, we need choose appropriate method to measure permeability coefficient.

针对具体的地质条件和研究对象，需选择合适的渗透系数测量方法。

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The results show that fly-ash is of low specific gravity, low compressibility, high strength and high permeability etc .

结果表明粉煤灰具有质轻、压缩性低、强度高、渗透性好等特点，粉煤灰的压实干密度对含水量不是很敏感。

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