The utility model provides a water-saving and environment-friendly cooling tower, which relates to a coolingdeviceforcooling the circulating water.
一种环保节水型冷却塔，涉及一种用于循环水降温的冷却装置。
2
But even more amazing is the windcatcher, a passive coolingdevice that has been used in Asia and the Middle East for many centuries.
不过更精妙的还是招风斗——一种在亚洲和中东被使用了好几个世纪的被动冷却装置。
3
A simple filtering and oil-recovery devicefor purifying the mould cooling air containing large amount of oil fumes in the exhausting pipelines has been described.