总的来说，结果表明，客机和轿车对气温的影响是公共汽车和火车的三倍。

Overall, results showed, passenger airplanes and cars affected the climate three times more than buses and trains did.

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用途：适用于居室、学校、医院、公共场所及客机、轿车等，也是外出旅游的必备佳品。

Uses: Suitable for use at home, in school, hospital, public area, aeroplane and car. It is also a useful first aid item to bring along when traveling.

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