fine porosity

基本解释

The resulting reservoirs are primarily of secondary porosity with fine throats and very low permeability.
形成了小容量特低滲透性細喉道以次生孔隙爲主的雙孔隙度儲集層。
The main lithology is clay, sub-clay, fine sand, fine porosity, the mineral components of rich fluoride provides an abundance of matter resources.
巖性主要爲黏土、亞黏土、細砂，孔隙小，富含氟的鑛物成分爲地下水中高氟提供了豐富的物質來源。
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Experiments led to the conclusions: ·that sandstone has high permeability because it has high porosity, good gradation and fine psephicity of grains, and perfect connectivity between inner pores.
實騐發現，由於砂巖的孔隙率大，鑛物顆粒的分選度和磨圓度較好，顆粒間孔隙的連通性很好，其滲透率最高；