Cold air also has a drying effect, which can increase the risk of dehydration.

冷空气也有干燥的效应，会增加你脱水的危险。

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The air on planes is extremely dry, and some experts believe that dehydration is a leading cause of jet lag.

机舱内的空气极为干燥，并且很多专家认为脱水是导致时差反应的首要因素。

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Conventional blanching and dehydration requires use of steam and forced hot air.

常规的烫漂和脱水需要应用蒸汽和加压热空气。

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The researchers did note that many of the cases of lightheadedness could be due to the relatively low oxygen content of cabin air-roughly equal to 8, 000 feet above sea level-or to passengers experiencing dehydration during long or multiple flights.

WSJ: The Flight Status of Passenger Ailments