The paper set up a model of hydro unit maintenance , whose object is the max income in the life period of unit, considering the economic factors of the power market and restrictions of hydro units.

本论文建立了水电机组最优检修间隔模型，以机组在寿命期内的收益最大为目标函数，考虑了电力市场的经济因素和水电机组的约束条件。

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Under no-load operation, how to set the PID parameters and prevent misfit among the parameters is concerned in hydro-turbine regulation.

在机组空载工况下如何整定PID参数及防止参数间配合不合理，是水轮机调节关心的问题。

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The principles and structures of Hydro-viscous Drive( HVD ) set were introduced.

介绍了液体粘性软启动装置的基本工作原理和结构。

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The first hydro-electric power station was set up in Mysore in 1902.

BBC: Ten interesting things about India power

And the groups of crofters and villagers who have bought them on a community basis have eagerly set about all sorts of enterprises, ranging from hydro-electric power schemes to holiday cottages.

ECONOMIST: Scotland