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flood control of Huaihe River
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flood control of Huaihe River
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工学
〔主要江河防洪〕
释
flood control of Huaihe River
淮河防洪
淮河流域地处南北气候过渡带,洪水灾害频繁。流域性大洪水,常常是干支流洪水遭遇,平原区洪涝并发。其防洪的重点是中下游广大平原区,有淮北平原、里下河、南四湖和沂沭河下游地区。这些地区保护的人口多达4000万~5000万人,保护的农田都在270万~350万公顷。
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infrared cutoff filter
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infrared detection
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infrared detector material
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infrared emanator
infrared emission
infrared excess
infrared-excess object
infrared flux
infrared-flux method
infrared focal plane array
infrared focal plane array detector
infrared focal plane device
infrared galaxy
infrared gas analyser
infrared glow
infrared grating
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