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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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DOCSIS
doctor
doctoral degree conferring institution
doctoral student education
doctor blade device
doctor blading
doctor degree
Doctor Gan
doctoring
doctor of education
doctor of engineering
doctor of medicine
doctor of sciences
doctor of veterinary medicine
doctor-patient communication
doctor-patient non-technical relationship
doctor-patient relationship
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