In general, smaller grain size and greater angularity tend to increase the porosity while an increase in range of particle size tends to decrease porosity.

通常，颗粒越小曲率越大孔隙度越大，而当颗粒尺寸增大时孔隙度会减。

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In general, smaller grain size and greater angularity tend to increase the porosity while an increase in range of particle size tends to decrease porosity.

通常，颗粒越小曲率越大孔隙度越大，而当颗粒尺寸增大时孔隙度会减。

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