aquifer water influx

aquifer water yield property

automatic water filling machine

beneath ″4th Aquifer″ water body

boiler water filling

confined water aquifer

Double water-filling method

Filling Water

free water aquifer

fresh water aquifer

fresh water filling main connection

fresh water filling pipe

ground water aquifer

initial water filling

Iterative Water-Filling

Iterative Water-Filling Algorithm(IWFA)

karst aquifer water

karstic water filling mining area

load increasing by filling water