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北方国家级林业种苗示范基地(北京市大东流苗圃)隶属于北京市林业局,是由国家计委、国家林业局批准立项建设的大型林木种苗生产与示范基地。
The national demonstration base of national forestry seedlings (Beijing Dadongliu Nursery) belongs to the Beijing Forestry Bureau and is a large-scale tree seedling production and demonstration base approved by the State Development Planning Commission and the State Forestry Administration.