说明：  井群降水复核计算，自动提取图形中的圆作为井点，根据输入的井群总出水量、井群降水影响半径、含水层厚度等，自动计算任何指定位置的动水水位及降深
(Well precipitation review, the automatic extraction of the circle graph as well, according to the total group entered the water, well, well the impact of cluster radius of precipitation, aquifer thickness, automatic calculation of the location of any given level of moving water and deep down)