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五家共井
释义
五家共井
古代著名算题。载《九章算术》方程章。甲、乙、丙、丁、戊五家共井,依次二、三、四、五、六绠皆不足如下家一绠,如各得所不足一绠,皆逮。问井深、绠长。《九章算术》以正负术入之,用方程术求解,求出井深七百二十一寸,甲二百六十五寸,乙一百九十一寸,丙一百四十八寸,丁一百二十九寸,戊七十六寸。刘徽认为此系“举率以言之”,是为中国算学史上首次明确提出不定方程问题。
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not bear the sight of someone
not bear the sight of (someone or something)
not bear the sight of something
not bear the sight of them
not bear the sight of us
not bear the sight of you
not be as black as are is painted
not be as black as it is painted
not be as black as you are is painted
not be as black as you it is painted
Dazaifu City Tourist Information Center
Daive House Manta Ishigaki - Day Tours
Energy Park
Former Ringer House
Former Residence of Yahata
Former Residence of Nagaoka Hantaro
Former House of Nagayo Sensai
Foot Light Street
Fontana no Oka Kamo
Flowfish
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洋芋粑
丝娃娃
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恋爱豆腐果
豆腐圆子
米豆腐
羊肉粉
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更新时间:2026/11/8 21:30:50