For treatment plants which have additional upstream hydraulic head available, the operating water level can be raised and the shaft bearings can then be mounted directly to the top of the tank walls.
这促使轴，对于具有额外的上游水力头的污水处理厂，可以提高运行污水水平，然后直接将轴轴承提高到池壁顶端。
It is an effective method for improving test precision that the water head loss tests of hydropower station inlet section are performed by increasing discharge or raising reservoir water level.
同时采用加大流量法和提高库水位进行进水口段的水力损失试验，对提高试验精度是一个行之有效的方法。
In the meantime the time variation of the water level in the ditch has been taken into account, therefore the groundwater head are time-varying as the groundwater flows toward the drain system.
在讨论这个问题时，又考虑进了排水沟中的水位也是随时间而变化的，因此在地下水流动过程中的任一瞬时，其地下水头差也是一个变量。
It possesses the characters of high head, high velocity, long operation time and large variation range of water level.
它具有水头高、流速大、运行时间长、水位变幅大等特点。
When the system is confined well, the change of observation water level has a linear relation with water head change.
在系统封闭很好的情况下，观测水位的变化基本与水头的变化呈线性关系。
One of the most important things to remember when swimming freestyle, or any other stroke for that matter, is head and body position. You want your body to float as level on the water as possible.
自由泳练习或者在练习其他的划水时非常重要的一点是头部和身体的位置，你应该让你的身体在水中呈现尽可能的水平漂移！
This scenario would also apply to the situation of using irrigation waters from a farm dam to provide power because the water level, and therefore the Gross Head, would vary enormously.
这种情况也适用于使用情况从一个农场水坝提供灌溉用水的权力，因为水位，因此，在总团长，将大相径庭。
When you move through water you create a 'bow wave' with your head and body, just like a boat does. The shape of the bow wave means the water level drops along the side of the swimmer's face.
当你随着你的头部和身体在水中移动的时候，你会随着产生一股“涡流”，类似小船产生的一样。涡流的形状表示水位沿着游泳者的面部两侧下降。
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。
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。
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