Physically clean the beast: Stop by the local office store, grab a can of compressed air, and clean out the "dust bunnies", especially if you can hear the exhaust fans over the mid-day football.

物理地打扫一下电脑：路过当地的办公用品商店时，顺便买一罐压缩空气，用它清除一下电脑机箱里的积尘。特别是当你觉得精疲力尽的风扇声甚至盖过了正午的足球比赛时。

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Challenge 1: Can you spot all the exhaust fans in the picture below?

挑战1：你可以找出下面图片中所以得排风机吗？

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To keep ambient temperatures constant, equipment should be kept away from direct sunlight, exhaust fans, and similar sources of heat flow or moving air.

为了使环境温度保持恒定，应当使仪器设备避开阳光直射、排气扇以及其它类似的热流源或者气流。

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Even the exhaust fans from bathrooms--gone.

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