Boulton's factory was powered by water - wheels but these stopped turning whenever the streams dried up.

波尔顿的工厂用的是水轮发动机发电,遇到河流干枯,水轮便无法转动.

英汉非文学 - 科学史

In the country, water wheels turned by oxen are common.

在农村, 牛拉的水车是很普遍的.

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Farmers since the ancient Greeks have used water wheels to grind wheat into flour.

早在古希腊,农民就开始利用水轮把麦子磨成面粉.

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And I also saw water wheels in some beauty spots, however, which were only for view.

并且我在一些风景区也看见过, 但是仅仅是供观赏的.

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