The pores of this rock contain water that seeps down through the Earth. 那些多孔岩石的微孔中含有从地球上渗下来的水分。
ESEM showed that except for pores required for cell culture, there were large proportion of mini-epore, supplied for nurtrition and metabolic product transportation. 冷冻干燥法制得的泡沫含有适宜的孔径,孔隙率大,除大孔之外还有高比例微孔,且微孔之间相互贯通而适于细胞培养。