BLOWER, an electrically operated fan for circulating air.

鼓风机，用来使空气循环的电动风扇。

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Mainly clockwork. The electrically operated are in the next section.

主要是“发条装置”，电动操作的在下一个部分。

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How to know the electrically operated hanging basket's counterweight question?

如何认识电动吊篮的配重问题？

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Helsinki Airport, for example, has cut its carbon dioxide emissions by nearly 2, 500 tonnes compared to 2011, by making heating, ventilation and lighting more energy-efficient, as well as using electrically-operated vehicles.

BBC: Airports doing more to go green