水位图

例句：

1. 1. The engineer drew a detailed water level chart for the construction site.
   工程师为工地绘制了详细的水位图。
2. 2. The hydrology department uses water level charts to monitor river flows.
   水文学部门使用水位图来监测河流流量。
3. 3. The map shows the current water level in the lake, indicating the depth of the water.
   地图显示了湖泊当前的水位，表明水的深度。