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I~iINING OF BOTTOM COAL WITI-i0 <br />~ ADDITIONAL SUPPORT .. <br />NDT TO SCALC <br />l a <br />FIRST f:.ir:ING OF <br />- - - 10~ OF COAL <br /> <br />- ~ -` _- <br />SECOND r.'.If;Ir~G OF - _ <br />5~ OF BCrT 10th COAL <br />1 t,;~ j, <br />~"~~~ ~`t!.A):It!Uf: -LENGTH <br />OF COf:TIr:000S <br />r:INER t:.t+CHINE <br /> <br />~C'~j~ . <br />icoP J3° <br />