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一、永定河文化研究的由来上个世纪八十年代中期在门头沟区博物馆,门头沟区民间社团 “文博之友学社”提出了永定河文化的研究命题,至今已经有20年了。
First, the origin of Yongding River culture The mid-eighties of last century in Mentougou District Museum, Mentougou community “Friends of the Friends of Culture ” Proposed Yongdinghe culture research proposition, it has been 20 years.