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Description: (a) This diagram of a zinc mine in Tennessee shows the basic components of an underground mine. (b) Underground mine operations can use large equipment like this scaler, which removes loose materials left on the walls and roof after blasting Picture Stats: Views: 401 Filesize: 116.09kB Height: 1080 Width: 568 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=21587 |