The seawaterencroachment is a problem of water quality.
海水入侵是一个水质问题。
2
Exploitation of groundwater in coastal areas shall undergo scientific demonstration, and measures shall be taken to prevent sinking of land surface and encroachment by seawater.
在沿海地区开采地下水，应当经过科学论证，并采取措施，防止地面沉降和海水入侵。
3
This paper takes as its target at exploring the regularities of the seawater wedge encroachment and attacking influence on the coastal line groundwater level change through laboratory experiments.