The groundwaterdepression can be controlled and restored, and it may develop to be a geo-disaster only when it is out of control.
漏斗是可以控制和恢复的，只有在控制不当的情况下才会产生地质灾害。
2
Large quantity of continuously groundwater pumping in an area forms regional groundwaterdepression cone, and overexploitation leads to a series of environmental and geological problems.
对地下水资源的长期大量集中开采形成了区域性地下水位降落漏斗，地下水的超采引发了一系列环境地质问题。
3
The seasonal model of time series is used for modelling the monthly average groundwater table of the depression area of the old yellow river in the People' s Victory Canal District.