[請益] 人們會把河水引進井水嗎?
河水不用白不用 很多沒水的地方都抽地下水
有沒有人做把河水引到井水來補充地下水的工程呢?
反正河水不用也是流海裡 而地下水抽太多又怕會地層下陷等問題
如此一來不是一舉兩得? 為何好像沒聽過這類工程呢?
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