The solute concentration decays when the groundwaterdischarge, a spot of pollution source, enters to streams and moves to lower reaches.
地下水渗出（相当于一点污染源）进入河流后，在随河水向下游运移的过程中，其水质浓度也将发生衰减。
2
The distribution and dynamic regime of mud springs have certain hydrogeological significance for the study of the way of groundwaterdischarge.
湖眼的分布和动态变化对于研究地下水的排泄方式具有一定的水文地质意义。
3
It is easy to exactly predict mine groundwaterdischarge regime by using stationary linear system theory. This method is simply introduced in the paper, and one example is also given.