Porosity, a key index of porous materials, is the most primary factor for many properties of porous materials.

孔率是多孔材料的关键指标，是多孔材料若干性能最主要的决定性因素。

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The results show that the porosity of plant fiber is the main intensity factor, and followed is the perforation of the configuration forms, and size of perforation is independent.

试验结果表明：植物纤维穿孔板静曲强度的主要影响因子是孔隙率，其次是穿孔的排列方式，与孔径大小无关。

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It is a key factor in the response of a neutron porosity log.

含氢指数是中子孔隙度测井响应的主要参数。

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