frozen perched ground water
permanent perched water
perched temporary ground water
perched water table
栖留水位
栖留地下水位
栖止地下水位
栖留潜水面
悬着水位
栖留水面
渗滤
滞水面
滞水台
Upper perched water zone
ground permanent deformation
permanent water ballast pump
permanent water plant on left hank of Three Gorges
permanent water-proofing agent
permanent-water-supply standpipe system
single line permanent ground (SLG) fault
abnormal change of escaped gas radon from ground water