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根治海河
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根治海河
Encyclopedia
历史学
重要事件
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Bring the Haihe River Under Permanent Control
根治海河
从1963年到20世纪80年代初期,中国海河流域人民响应毛泽东主席“一定要根治海河”的号召,在国家统一规划下对海河水系的洪、涝、旱、碱等灾害进行全面治理的一场史无前例的群众性运动。是中国水利建设史上的重大事件。
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effective ion Larmor radius
effective Lagrangian of non Abelian gauge theory
effective Lagrangian of non-Abelian gauge theory
effective Lande g factor
effective length
effective length of capillary
effective line width
effective listening
effectively computable function
effectively decidable theory
effectively denumerable set
effectively equivalent sets
effectively hyperbolic
effective magnetization
effective magnification
effective masking
effective mass
effective mass approximation
effective mass of electron
effective mass of electron and hole
effective mass of electrons
effective mass of hole
effective mass of soliton
effective medium theory
effective mobility
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