phreatic decline

• 地下水位下降,地下水位降低

phreatic decline的用法和样例：

例句

1. Overpumping groundwater for drinking water and irrigation has caused water levels to decline by tens of metres in many regions,forcing people to use low-quality water for drinking.
   过度抽取地下水做为饮用水和用来灌溉在许多地区已经使水位下降了几十米，迫使人们使用质量较差的水来做为饮水。