hydraulic head

基本解釋

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.
地下水水頭在含水層中的分布已有許多研究成果，但在相對隔水層中的分布還缺乏深入研究。
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.
在理論分析和實測資料的基礎(chǔ)上，作者肯定了謝維列夫公式能用來分析和計算塑料管的水頭損失。
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.
負(fù)壓灌溉法是一種新近提出的節(jié)水灌溉技術(shù)，灌溉時供水水頭為“負(fù)值”，即灌溉水源高程低于灌水器高程。