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中国历史时期运河
释义
中国历史时期运河
Encyclopedia
理学
中国历史上的运河
释
Chinese historical Canals
中国历史时期运河
中国历史时期人工开凿的通航水道,至晚于春秋战国时期已经开始修凿运河,后世兴修的京杭大运河,迄今仍是世界上最长的运河。
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law of commutation
law of commutativity
law of complementation
law of composition
law of compound transposition
law of conservation and transformation of energy
law of conservation of angular momentum
law of conservation of charge
law of conservation of energy
law of conservation of mass
law of conservation of matter
law of conservation of mechanical energy
law of conservation of moment of momentum
law of conservation of momentum
law of constancy of interfacial angles
law of consular relations
law of contiguity
law of contradiction
law of contraposition
law of cooling
law of corresponding state
law of corresponding states
law of cosines
law of criminal saturation
law of currency circulation
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