High phreatic water level
coupling mechanism between upper level and low level jet
fiscal system at county level and township level
interaction between upper level and lower level
municipal level and county level
belt of phreatic fluctuation
coefficient of phreatic evaporation
evaporation of phreatic water with high salinity
foundation pit phreatic water drainage
inter-strata phreatic aquifer
limit depth of phreatic evaporation
net recharge of phreatic water
oxidation zone betwetn phreatic layers
phreatic (water) surface