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+Article 2 (49) |
Article 2 (49)‘drainage system’ means a system which may comprise multiple methane sources and which drains methane-rich gas from coal seams or surrounding rock strata and transports it to a drainage station; 1. Prehľad
1.1 Odkazy1.2 Identifikované požiadavky1.3 Súvisiace štandardy2. Identifikované požiadavky
3. Súvisiace štandardy
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