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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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group of stability
group of stars
group of substitutions
group of symmetries
group of symmetry operation
group of symmetry operations
Group of the Twelve
group of torsion
group of transformations
group of translations
group of triangular matrices
Group of Twenty in Agriculture Negotiations
group of twisted type
group of type I
group of type p∞
group of unitary operators
group of units
group of working on singing and dancing
groupoid
groupoid algebra
groupoid with unit element
Group on Earth Observation
group operation
group orbit
group order
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