He jump into the water head over heels.

他头向下地跳进水里.

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。

Not consuming the principal part of a project the water head energy;

不消耗主体工程的水头能量；

It is also part of the watertight envelope, and subject to the local water head.

它也是水密外壳的组成部分，并承受局部水压力。

Higher water head closure has become a trend with the development of river way closure.

从河道截流的发展趋势来看,高水头截流已成为一种趋势.

The optimum starting - up water head for the different types of units of the right plant are figured out.

同时也对不同的调度方案和检修策略进行了相应的研讨，从而得出了适合三峡工程右岸电站各种机型最有利的开机水头。

The turbine for the Three Gorges Project is one of the mixed-flow turbines with great changes of operation water head.

三峡电站水轮机是运行水头变幅最大的混流式水轮机之一，其外形尺寸和重量亦是当前混流式水轮机之最。

These results can be referenced to the plan of water level procedures on the dam; and the behaviors of high rockfill dam with asphalt concrete core under high water head are studied.

研究结果可供大坝蓄水计划参考，并为高水头下高沥青混凝土心墙坝的运行提供一定的参考。

At the same time, this paper evaluates the viewpoint of the non-equivalent water head distribution and the non-equivalent intensity distribution of water flow in the horizontal well.

论证了水平井井内水流非等水头分布、也非等强度分布的观点。

The general rectangle sharp-crested weir, when the water head of weir over comes to a certain height , the weir flow is the free weir flow .

一般的矩形薄壁堰，当堰上水头为一定高度时，过堰水流是正常的自由堰流。