velocity head of flow

基本解釋

As the high head, high velocity and large flow of flood discharge, the concrete of spillway tunnel in Xiaowan Hydropower Station is easy to be damaged by cavitation.
小灣水電站泄洪洞在泄洪時(shí)具有高水頭、高流速、泄量大的特點(diǎn)，對(duì)混凝土沖刷力強(qiáng)，容易產(chǎn)生空蝕破壞。
The uncertainty of the parameters may induce uncertainty calculation of water head and velocity of flow, and influence the reliability of the results of groundwater resources appraising.
參數(shù)的不確定性將導(dǎo)致計(jì)算的水頭、流速的不確定性，并影響到地下水資源評(píng)價(jià)結(jié)果的可靠性。
There are four emphases in -research, for instance, flow state in pipeline, distribution of concentration and velocity, deposition-limit velocity and calculation of flow resistance or head loss.
研究重點(diǎn)主要集中在管內(nèi)流動(dòng)狀態(tài)、濃度和速度分布、臨界流速及阻力損失計(jì)算四個(gè)方面。