utilized head是什么意思

用法例句

In case of a variety of schemes for excavated trough,the relation between increment of utilizable hydraulic head and engineering quantity of downstream river course at the power station is studied.

通过能量方程对吴家街电站下游河道疏浚治理新方案的计算分析，研究了下游河段不同开挖方案电站下游河道可利用水头的增加值与工程量之间的关系，分析了下游河段最佳利用水头及相应的工程量，并对下游河道的演变与挖槽的稳定性等问题进行了分析论证。