hydraulic head

基本解释

There have been a lot of achievements on hydraulic head distribution in aquifer, but the research work on hydraulic head distribution in relative water resisting layer is not sufficient.
地下水水头在含水层中的分布已有许多研究成果，但在相对隔水层中的分布还缺乏深入研究。
Based on the analysis of hydraulic theory and experimental data obtained by author, it is confirmed that Chevielev's formula can be used for computing the hydraulic head loss of plastic tubes.
在理论分析和实测资料的基础上，作者肯定了谢维列夫公式能用来分析和计算塑料管的水头损失。
Negatively pressurized irrigation(NPI) method, a newly irrigation technology, in which the elevation of the emitters is higher than that of the water source, runs under negative hydraulic head.
负压灌溉法是一种新近提出的节水灌溉技术，灌溉时供水水头为“负值”，即灌溉水源高程低于灌水器高程。