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flood control of Huaihe River
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flood control of Huaihe River
Encyclopedia
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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pseudo-Riemannian manifold
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pseudo-Riemannian space
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pseudo-ring
pseudorotation
pseudo-Runge-Kutta method
pseudosaccus
pseudo-satellite technology
pseudo-scalar
pseudoscalar
pseudo-scalar covariant
pseudoscalar meson
pseudo-scalar product
pseudoscalar singlet
pseudoscope
pseudoscope image
pseudoscopic image
pseudosection diagram
pseudo-seismic interpretation
pseudo-semantic tree
pseudo-separant
pseudoseptum
pseudo-side
pseudo-similar
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