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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. Apžvalga
1.1 Nuorodos1.2 Nustatyti reikalavimai1.3 Susiję standartai2. Nustatyti reikalavimai
3. Susiję standartai
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