This paper describes the methods of fan testing and making fan property curve by dimensionless characteristic coefficient for the cooling fan of air-cooled engines.

论述了风冷发动机冷却风扇的试验法和用无因次特性系数法制取风扇特性曲线的方法。

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Standard transformer can only operate at the rating capacity without the cooling fan, while each transformer may be installed with an extra cooling fan to increase the output capacity.

每台产品上均可加装风机增大变压器容量输出，不装风机的变压器能在额定容量下连续运行。

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The engine hydraulic stepless speed regulation cooling fan changed the traditional drive type of the engine cooling fan.

发动机液压无级调速冷却风扇，改变了发动机冷却风扇的传统驱动方式。

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Cooling fan: Unlike conventional heaters it has a dual-mode function as a cooling fan.

ENGADGET: Dyson intros Hot AM04, aims to change the home heating game (video)

Modem and network interface are included, too, along with a really noisy cooling fan.

FORBES: Doesn't Do Windows

The MicroNet is fast, but installing the bulky unit was a chore, and its cooling fan is noisy.

CNN: IDG.net - Recordable and rewritable CD drives: Permanent, portable storage