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T1(~ICAL SCHEME LONGVII~LL VENTILATION ~~ ~ •• <br /> <br />N <br />00 <br />iooo <br />I ~. I `: . ~ ~ ~- CHECK CURTAIN <br />,i~II <br /> <br />yr l" <br />'"1.. -1~ <br />~(~ <br />1 <br /> <br />r <br />~~ <br />.~'• r:. <br />~--~- <br />~C STOPPING ` DIRECTION OF OUT-80UND COAL <br /> <br />