Constant speed drive, a hydro-mechanical component for changing variable engine gearbox speed to constant speed to drive the electrical power.

恒速驱动装置，将发动机齿轮箱的可变转速转变为恒速以驱动电源的液压机械式部件。

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This paper introduces rectifying running parameters for electrical hydraulic pressure governor of hydraulic turbine of middle and small hydro power station.

文中论述了中小型水电站水轮机电液调速器的试验参数整定。

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The international purchase amount of mechanical and electrical equipment of Ertan Hydro Station is up to about 200 million US dollars. The purchase items are numerous and bring great competition.

二滩水电站机电设备国际采购总金额近2亿美元，其项目众多，竞争激烈，采购方式灵活且历时较长。

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In the long-term China is also investing heavily in hydro-electrical power and another renewable energies.

BBC: China's coal conundrum as smog worsens

It comprises a few rows of identical houses, built to house the workers of a hydro-electrical dam and a brief line of shops.

BBC: The dinosaur route of northwest Patagonia

Consider also that alternatives currently account for only about 10% of U.S. electrical power production (half of that from hydro).

FORBES: Renewable Energy Delusions: Getting A Real Grip On Alternatives