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Atmospheric pressure - Wikipedia, the free encyclopedia

Atmospheric pressure is the force per unit area exerted on a surface by the weight of air above that surface in the atmosphere of Earth (or that of another planet). In most circumstances atmospheric pressure is closely approximated by the hydrostatic pres...

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披薩,一種全球流行的意大利美食,粉絲無數.. 進入各國各地每一家披薩店,人們總能看到那幾道萬年不變的經典款披薩,其中一種是: 夏威夷披薩(Hawaiian Pizza)。     夏威夷披薩,有些地方也叫鳳梨披薩,是將鳳梨切成小塊,和火腿片一起放在披薩麵餅上,最後再放...

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