025d74fec506452888e1e55570c38d1b_th025d74fec506452888e1e55570c38d1b_th44c83eba8b9e4c3ca86455840f8c0ae3_th51d2275304064e509d72ecd6d2d7ffb7_th52e20c130b3b4f9da39620bd512d38fe_th62e1bdebf841403c9a52cd20546e7d45_th025d74fec506452888e1e55570c38d1b_th44c83eba8b9e4c3ca86455840f8c0ae3_th51d2275304064e509d72ecd6d2d7ffb7_th52e20c130b3b4f9da39620bd512d38fe_th62e1bdebf841403c9a52cd20546e7d45_th我为祖国找宝藏——那些五、六十年代的地质工作者插画（4）
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