Minish the well space and increase transflux routeways upper backwater and driving, especially setup precipitation well and drain residual water at the bottom of diving layer.

减距，增加上层滞和潜的入流通道，尤其要在潜含层底板低洼处设置降将低洼处的残留。

Weathered rock is the predecessor of saprolite and is mainly made of corestones surrounded by saprolite crust.

土层可贮存上层滞，风化岩带则可赋存潜或承压。