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Siphon Project in Ancient China
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Siphon Project in Ancient China
Encyclopedia
理学
古代虹吸工程
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Siphon Project in Ancient China
古代虹吸工程
中国古代利用真空负压原理建造的一种特殊的引水工程,是中国古代对有压流水力学现象认识和利用、古代对水流运动规律认识水平的重要标志。
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Radar Ocean Reconnaissance Satellite
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Radarsat
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