The impulse of falling water turns the waterwheel.
落水的冲力使水轮转动。
《新英汉大辞典》
2
The coal-fired steam engine was taking over, and the waterwheel was fast becoming obsolete.
烧煤的蒸汽机开始占领市场，于是水车很快就过时了。
3
In 1832, the year of Michael Faraday's discovery that a changing magnetic field produces an electric field, a young French engineer patented a new and more efficient waterwheel.