the main groundwater of north anchoring area is perched water with relatively less volume and the underlying sandstone is impermeable layer.
北锚碇区主要地下水为上层滞水,水量较小,下伏砂岩为不透水层。
The impermeable layer has aged, we must find someone to repair it.
楼顶的防渗层已经老化, 要请人来修理了.
The external layer of the skin is relatively impermeable to water.
皮肤的外层不透水.
英语网 · 双语娱乐资讯