GOST R EN 14591-1-2012 Underground mines Explosion prevention and protection systems Part 1 2-Bar explosion-proof ventilation structures《地下矿山防爆和保护 保护系统 第1部分 防2 bar爆炸通风结构》.pdf

《GOST R EN 14591-1-2012 Underground mines Explosion prevention and protection systems Part 1 2-Bar explosion-proof ventilation structures《地下矿山防爆和保护 保护系统 第1部分 防2 bar爆炸通风结构》.pdf》由会员分享，可在线阅读，更多相关《GOST R EN 14591-1-2012 Underground mines Explosion prevention and protection systems Part 1 2-Bar explosion-proof ventilation structures《地下矿山防爆和保护 保护系统 第1部分 防2 bar爆炸通风结构》.pdf（16页珍藏版）》请在麦多课文档分享上搜索。

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7、, 2 ,2 , R1R2 20 600 300 20 1000 5005.2.3 250 . ( ) - . - 250 .5.3 5.3.1 2 -.5.3.2 , - 2 , . 90 . (. 13478 13463-1)., , - .4 14591-120121 3 R2 5.3.3 , 2 , . 90 ., , - .5.3.4 . , .6 , - 2 , , - .5 14591-12012 () , 2 = 700 h0= 1800 .1 , 2 6 14591-12012 .1 , 2 /1 1 S 235 JRb2 1 S 235 JR3 1 S 235 JR4 1 5 1 S 235 JR6 1 2957 1 S 235 JR8 2 S 235 JR9 2 S 235 JR10 4 S 235 JR11 8 S 235 JR 10025, 4.b S 235 JR: 2, 2, 3, 3 - .7 14591-12012 () , 2 = 1600 h0= 2000 .1 , 2 8 14591-12012 .1 , - 2 /1 1 S 235 JRb2 2 S 235 JR3 2 S 235 JR4 2 5