bubble-pressure method是什么意思

用法例句

The method takes advantage of measuring natural Radon(Rn) from the radioactive decay of radioisotope Radium in the core sample instead of fluid injection /saturation as in common porosity measurement.

为了探索既不改变原有孔隙、又不污染岩石的孔隙度测定新方法 ,以岩石中天然放射性同位素镭 2 2 688　Ra 递次衰变释放出的氡气替代常规孔隙度测定中的注入或饱和流体 ,进行了岩心孔隙度测定方法的新尝试。

The study on the calculation for the excess pore-water pressure of the earthquake on the earth dam;

土坝地震附加孔隙水压力计入方法的探讨