kept cool or designed to be kept cool by means of water especially circulating water;
"a water-cooled engine"
例句
用作形容词 (adj.)
The fuel burner of an open - hearth furnace is water - cool, as is the valve that regulates the flow of air and waste gases. 平炉的燃料燃烧室是用水冷却的，控制空气和废气的阀也是水冷的。
美
