head water elevation的意思|示意

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头部水位

head water elevation的网络常见释义

上游水位 ... head of water over weir 堰顶水头 head water elevation 上游水位 head water level 上游水位 ...

head water elevation相关例句

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。