The precipitation, surface water resources, groundwater resources, and total volume of water resources were evaluated for Luoyang City.
对洛阳市的降水量、地表水资源量、地下水资源量及水资源总量进行评价。
From the view point of rational and efficient allocation of water resources, it is very important to study the sediment-carrying water volume in hyperconcentration rivers.
从多沙河流水资源合理配置和高效利用角度出发，研究确定适宜的输沙用水量是非常重要的。
The computation of utilizable water resources volume is always a difficult point in regional water resources evaluation.
水资源可利用量计算一直是区域水资源评价中的难点。
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