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双重堤防
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双重堤防
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双重堤防
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double embankment system
双重堤防
明代治河专家潘季驯为实现“束水攻沙”目标,总结前人经验,在黄河下游徐州至海口两岸建设的堤防工程系统。
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Unipolar Hegemony
unipolar immigration
unipolar induction
unipolarity
unipolar leads
unipolar magnetic region
unipolar neuroblast
unipolar neuron
unipolar pulse width modulation
unipolar resistive switching
unipolar spot
unipolar sunspot
unipolar transistor
unipolyaddition
unipolycondensation
uniport
unipotency
unipotent
unipotent automorphism
unipotent cell
unipotent character
unipotent component
unipotent element
unipotent elements
unipotent group
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