The hydraulic turbine unit frequently operates under the low water head, exists the questions of unstable operation and cavitation in Mania hydropower station.

满拉水电站水比机组经常处在低负荷下运行，存在着局部空蚀破坏和运行不稳定两大问题。

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He had an uncontrollable mania for food, drinking water freely with the meals.

他对食物有无法控制的喜好，用膳时喝很多水。

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