(Q381176)
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Wikipedia(7 entries)
- dewiki Strebbau
- enwiki Longwall mining
- frwiki Longue taille
- mlwiki ലോങ്ങ്വാൾ ഖനനം
- srwiki Лонгвал-рударство
- svwiki Långväggsbrytning
- trwiki Uzunayak madenciliği
a form of underground coal mining where a long wall of coal is mined in a single slice