active porosity的用法和樣例：
例句
- Dissolition is favorable for secondary porosity, thus forming available reservoirs in some sections of low porous and low permeable clastic rocks.
從而使某些砂巖段在低孔低滲儲層中形成較發(fā)育的次生溶蝕孔隙和成巖微裂縫，并成為有效孔隙。 - It is found, in one-dimensional subsurface flows, that porosity and storativity play an important role in the propagation of the head potential fluctuation.
由研究發(fā)現，一維地下水層中，受擾動(dòng)地下水水頭的傳遞快慢受飽和土壤儲水系數及有效孔隙率的影響。
