HAMBACH, GERMANY - SEPTEMBER 1, 2010: One of the world's largest excavators digging brown-coal (240,000 cubic metres per day) in one of the deepest open-pit mines in Hambach on September  1, 2010
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HAMBACH, GERMANY - SEPTEMBER 1, 2010: One of the world's largest excavators digging brown-coal (240,000 cubic metres per day) in one of the deepest open-pit mines in Hambach on September 1, 2010