2021新版井下透水预防

€0\r<‚ƒ„…†‡ˆ:?‰ŠuvY‹Œ 8N0@{|\rŽ‘^?‹Œ‹’“8N=?”•(–—‘^?˜‡.\r™š›vuœžŸ ? \r5.£?¤7¥ƒ¦§m\r¨1ª?«¦§¤7P¬­??®k®§/¯°.¯±p\re¦§0¤7H² ¦§m(¥³´µ\n¶¦0¤·\r¸¹°.±ºQ¤»0°‚0±¼FG3:½Q\rF¾0¤7 ¿8¦§¤7¯°/?8BmnÁ0¤·\r@°?°¤»0eÂÃÄÅhÆijF¾0¤7+\reL5Bmn/h \r¨2ª?£Éʦ§¤7¨90°É£Êª`¤7:?Î_\rQP\rQ=l.343H2.47¨M/Öª\rΈPH××0ØÙ¨Únª\r?£ÉÊba0ØÛ?aA4ÚnÜa3?ÝÞ6b\rq11rEvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\r%t&'IMineSafety\r%t&'\r)0Ø?^)A1.0nÊÙP<sub>lV/sub>?ÛaA0.2n\r?£Éʦ7Ýðe±1×2% \r¨3ª?Pʤ󦧤7 ôõ0Ø)a?¯pQö+\r)\ra¤0ó`–ð?^aA2n=0¤÷óø?ùú\rû|0!ü¦§0¤ýð?þ꽤7P\rQ=6.89VPA\rp??Q\r??/V????/\rA????\r??!"#$%&10/$#)&0.3$\r+,&0.15,/0\r&123\r4?567pQ=0.89V-AV=10/\rA=0.3X0.15=0.045<=7p>\rQ=0.98X10X0.045=0.441?/\rXXX?@AB\rC@D@EFGHIJKL\rM12N