常見例句雙語例句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?zhàn)ね痢嗮ね?、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。www.xian.cgs.gov.cnExperiments 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(fā)現(xiàn),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; 返回 fine porosity