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Bonfire party
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Eight Taishan - high altitude hot air ba
2016-07-30
Eight Taishan scenic hot air balloon manned novelty experience project eight Taishan hot air balloon is to use hot air as a floating balloon. For the cold air is heated by the large openings and the basket in the bag at the bottom. Air heating density decreases, the temperature reached 100 degrees C when the density is about 0.95kg/m3, is the 1/1.3 of air, so the lift is not high. From the ground
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