It has evident effect of energy saving on the use of air cooling fan with poor rectifying condition & small hub ratio.

它用于整流条件差且轮毂比小的空冷风机上有明显的节能效果。

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Laptop pads that have vents but no fans can also increase the air flow around your laptop and they're very portable, but for stronger cooling needs, a fan is the best way to go.

仅有排气孔的冷却垫也能促进笔记本电脑周围的空气流动，而且便于携带，但是如果需要更强力的冷却效果，风扇是最好的方法。

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The cold air was then expelled into a closed space using a fan, cooling the room and stabilizing the humidity.

冷气随后用风扇排入封闭空间，冷却了屋子，稳定了湿度。

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Pushing air cooling to its limits might mean buying a bigger fan to the mortal PC builder, but for Mike at Total Geekdom, it meant constructing a wind tunnel case.

ENGADGET: Wind tunnel PC case pushes the air cooling envelope, does its thing for cancer research

The Hailstorm II pairs an advanced liquid cooling system with a blustery current of cold air driven by three front intake fans and a large rear exhaust fan.

ENGADGET: Digital Storm's Hailstorm II relieves you of gaming PC claustrophobia, $2,760 cash