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铁矿山开采基本知识

来源:花匠小妙招 时间:2025-05-12 21:57

                                                                                                                                                                                                                                                                                        40       ,       204   :     44 ,       160 ,          19719  t                   (  ,  ,  )        1949~1957   ,80%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      40       ,       204   :     44 ,       160 ,          19719  t                   (  ,  ,  )       1949~1957   ,80%          ,       20%  ,             ,           ,  90   ,           80%,            20% ( )     1996                18538  t,            735%       27 ,         9106  t,          10637  t  856%           :          2767%,    9707%,    439%,    274t/t,     750m/a      ,  ,             ,                        ,         1996 ,           23787m,   31611m(    );          14066m,   25279m(    )         ,        1996 ,            4~46m3  ,         1333  t,      16m3  ,       3475  t,   4821  t(     )              ,         80    ,           (  )           108~154t             ,          ,    1996 ,108t           359  t;154t    895  t,   123  t(    www.taodocs.com                                                                                                                                                                                                                                                                                               40       ,       204   :     44 ,       160 ,          19719  t                   (  ,  ,  )        1949~1957   ,80%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      40       ,       204   :     44 ,       160 ,          19719  t                   (  ,  ,  )       1949~1957   ,80%          ,       20%  ,             ,           ,  90   ,           80%,            20% ( )     1996                18538  t,            735%       27 ,         9106  t,          10637  t  856%           :          2767%,    9707%,    439%,    274t/t,     750m/a      ,  ,             ,                        ,         1996 ,           23787m,   31611m(    );          14066m,   25279m(    )         ,        1996 ,            4~46m3  ,         1333  t,      16m3  ,       3475  t,   4821  t(     )              ,         80    ,           (  )           108~154t             ,          ,    1996 ,108t           359  t;154t    895  t,   123  t(    www.taodocs.com       

    );      42t  ,        276  t,   443  t(      )1965   ,                ,1996 ,                  :80t     7918  t,100t     5499  t,150t     8826  t          ,        ,            ,           ,        80    ,                  ,               ,            1994      "             " "  "    ,                         ,         ,    ,    ,       ,                   ( )     1996             6690  t,            265%         17 ,       1536  t,        144%           :          369%,    762%,    198%,      698m   ,                  ,    72%,        ,  9%,           8%,     7%,            3%,     1%             50               ,                                    ,             ,     ,           ,    ,            ,                  ,         1949 ,                   199t/( ·a),  1995     561t/( ·a),     30   ,                 (      975%)  ( )           (      1/3),                   1996         21497  t,          25228  t  852%            85857  t,            10961   www.taodocs.com           );      42t  ,        276  t,   443  t(      )1965   ,                ,1996 ,                  :80t     7918  t,100t     5499  t,150t     8826  t          ,        ,            ,           ,        80    ,                  ,               ,            1994      "             " "  "    ,                         ,         ,    ,    ,       ,                   ( )     1996             6690  t,            265%         17 ,       1536  t,        144%           :          369%,    762%,    198%,      698m   ,                  ,    72%,        ,  9%,           8%,     7%,            3%,     1%             50               ,                                    ,             ,     ,           ,    ,            ,                  ,         1949 ,                   199t/( ·a),  1995     561t/( ·a),     30   ,                 (      975%)  ( )           (      1/3),                   1996         21497  t,          25228  t  852%            85857  t,            10961   www.taodocs.com       

  t,       4158  t,           484% ( )                ,                     12m  15m      ,     21m  22m         ,     21m  22m                ,       1m,     ,   ,          12mm          ( )             ,           ,                          ,                                ,      36m×6m,      32m×45m,      55m×18m,    27m×36m                         ,                     ( )     1                "   "          ,    ,                    ,              (    ),  ,             (       )(  3223)              ,           70    ,                     ,       62%     66%  ,                 65%      3223               m3-2-23jpg    www.taodocs.com         t,       4158  t,           484% ( )                ,                     12m  15m      ,     21m  22m         ,     21m  22m                ,       1m,     ,   ,          12mm          ( )             ,           ,                          ,                                ,      36m×6m,      32m×45m,      55m×18m,    27m×36m                         ,                     ( )     1                "   "          ,    ,                    ,              (    ),  ,             (       )(  3223)              ,           70    ,                     ,       62%     66%  ,                 65%      3223               m3-2-23jpg    www.taodocs.com       

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