The renewable resource, i.e., recharge resource, is a kind of sustainable water supply in theory, and the non-renewable resource, i.e., storage resource is only for emergency use, not for sustainable use.

• 可再生的补给资源，是理论上可持续利用的地下水资源；除了特定情况外，不可再生的储存资源只能借用而不能耗用。