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+Article 2 (47) |
Article 2 (47)‘ventilation shaft’ means a vertical passage used to move fresh air underground or to remove methane and other gases from an underground coal mine; 1. Pregled
1.1 Sklici1.2 Ugotovljene zahteve1.3 Povezani standardi2. Ugotovljene zahteve
3. Povezani standardi
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