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双重堤防
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双重堤防
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双重堤防
释
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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lighting for film and TV
lighting hanging system for studio
lighting measurement in building
lighting of tunnel and underground engineering
lighting power density
lighting protection and grounding
lighting rod
lighting simulation
lighting source
lighting system
lighting system for laying hens
lighting system of hydropower station
lighting tube
light intensity
light intensity detector
light intensity effect
light interference
light interferometer
light interferometry
light isotope
light jumper
light knock
Light length
lightlike
lightlike event
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