In this case, the water table is not flowsurface and there is no "seepage surface" on the side walls of drainage river channel.
该条件下的潜水位面不是流面，在排水河渠边壁也不存在所谓的“渗出面”。
2
Once all this information has been gathered, it becomes possible to judge whether a lake's flow is mainly due to its surface inputs and outputs or to its underground inputs and outputs.
一旦收集了所有这些信息，就有可能可以判断一个湖泊的流量主要是由其表面还是地下的输入和输出导致。
3
If the glass were kept hot enough, it would flow over the molten tin until the top surface was also flat, horizontal and perfectly parallel to the bottom surface.