active porosity的用法和样例：
例句
- Dissolition is favorable for secondary porosity, thus forming available reservoirs in some sections of low porous and low permeable clastic rocks.
从而使某些砂岩段在低孔低渗储层中形成较发育的次生溶蚀孔隙和成岩微裂缝，并成为有效孔隙。 - It is found, in one-dimensional subsurface flows, that porosity and storativity play an important role in the propagation of the head potential fluctuation.
由研究发现，一维地下水层中，受扰动地下水水头的传递快慢受饱和土壤储水系数及有效孔隙率的影响。
