-
1.The engineer used the discharge hydrograph to calculate the flow rate of the river.
工程师使用排水图来计算河流的流速。
-
2.The hydrograph shows the changes in water levels throughout the year.
水文图显示了一年中水位的变化。
-
3. The hydrograph was used to study the effects of climate change on the region's water resources.
水文图被用来研究气候变化对该地区水资源的影响。