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flood protection area of urban
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flood protection area of urban
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工学
河湖水系规划
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flood protection area of urban
城市防洪保护区
城市所辖范围内在防洪标准下受防洪工程设施保护的地区。主要包括城市防洪区和乡村防洪区。防洪保护区的范围,在防洪规划或者防御洪水方案中划定,并报请省级以上人民政府按照国务院规定的权限批准后予以公告。
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seed bundle
seed cane snipper
seed cells
seed chemical processor
seed cleaner
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seed cleaning and separating
seed cleaning and separating machine
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seed coater
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seed cotton dryer
seed crystal
seed culture medium
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