water head

基本解释

One is the conic treatment method with fixed water-head, and the other one is conicoid treatment method with changing water-head.
即固定水头下的一元二次函数协联处理方法与可变水头下的二元二次曲面拟合处理方法。
If it were possible to develop a turbine that did not need such a water-head to operate, and that could sit in the riverbed, then a dam would be unnecessary.
如果有可能制造出一种涡轮无需水的落差来运转，并且可以放置在河床上，那么就不再需要大坝了。
Its shortcomings include harsh restriction for suspended solid in influent, low phosphorus removal efficiency, high water-head loss and the height of lifting sewage.
但同时也存在对进水悬浮物要求较高，磷去除率低，水头损失大，污水提升高度大等问题。

Indeed, a calculation Dr Ip performed, based on the volume and composition of the urine he collected in the plastic buckets, and of the head-dunking water at the end of each day, suggested that only 6% of the urea excreted by the turtles was leaving them in the traditional manner, via urine.
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Justin Ferrari, a software engineer and water-polo coach, was shot in the head on May 24th while driving with his two children and his parents.
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The company has never turned a profit on an annual basis and continues to lose money each quarter on a GAAP basis, while barely poking its head above water on a non-GAAP basis.
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水头
There is a strict request on the water head allocation of aqueduct in main channel of Middle Route of North-South Water Transfer Project.
南水北调中线总干渠上渡槽等建筑物上的分配水头有严格要求。
水位差
水高差