All incorporate an internal combustion engine, a generator for recharging and an electric motor.

它们都包括一个内燃发动机，一个为充电使用的发电机和一个电机。

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In addition, as the shaft is vertical the electric generator can be installed on one end above the water-without any need of waterproof boxes.

此外，由于轴是垂直的，发电机可以被安装在水面以上的一端——从而无需任何防水箱。

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In addition, since the shaft is vertical, the electric generator can be installed at the top, above the water-so there is no need for any waterproof boxes.

除此之外，它的轴的垂直的，发电机可以装到其顶部，高于水面，这样就不需要任何防水装置了。

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Five years ago, dairy farmer Darryl Vander Haak flipped the switch on the first electric generator in Washington State powered by manure.

VOA: standard.2010.02.23

Instead of stepped gears like a conventional transmission, it has a fixed planetary gear, and changes engine speed by adjusting the generator electric load.

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Two hi-tech cables link the kite to an electric generator on the ground where the electrical power is generated.

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He has people working to develop a drone the size of a hummingbird and others working on an electric generator powered by ocean waves.

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