Since cold air sinks, and these spots are shaded, they are usually much cooler than the surrounding area.

由于冷空气下沉，这些斑点被遮蔽，它们通常比周围的地区要冷得多。

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Spills would also be a health risk, since carbon dioxide is heavier than air, and so can build up in low-lying or poorly ventilated spots.

二氧化碳泄漏会带来健康风险。 由于二氧化碳比空气重，因此可以在低洼地区和通风差的地区累积。

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The air wands can apply cool air directly to the “hot spots” inside a server tray, meaning less air is wasted or misdirected in the server room or container.

这个空气杆能够为在服务器托盘中位那些热的部件提供冷空气，这意味着减少了冷空气的浪费以及在机房的非直接性质的冷空气。

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The announcements offered bright spots to the generally gloomy environment at the world's biggest air show that is clouded by the economic crisis.

VOA: standard.2009.06.16

Most spots air for only 30 or 60 seconds (of course, you can play them back on social media sites), and there will be a heavy lineup of marketers ranging from Volkwagen, which is going with a Star Wars-like commercial, to GoDaddy.com, which has tapped Nascar sensation Danica Patrick once again.

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Budweiser will air expertly-produced spots about its history and Clydesdale horses.

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Dyer oversees a small team that shoots television spots that air on the Freedom Channel, an Afghanistan-specific American Forces Network channel, and helps run an FM radio station.

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