渗井 meaning in Chinese

diffusing well
leaching cesspool
leaching well
seepage well

Soakaway well and tubular well adopted together for dropping the water level of deep foundation pit
引渗井与管井联合降水在深基坑降水中的应用
Article 41 enterprises and institutions shall be forbidden to discharge or dump waste water containing toxic pollutants or pathogens or other wastes into seepage wells or pits , crevices or karat caves
第四十一条禁止企业事业单位利用渗井、渗坑、裂隙和溶洞排放、倾倒含有毒污染物的废水、含病原体的污水和其他废弃物。