A major industrial and coal mining region in the valley of the Ruhr river in northwestern Germany .
德国西北部一区,位于鲁尔河的峡谷中,是一个主要的工业和煤矿开采区。
A city of west-central Germany , an industrial suburb of Essen on the Ruhr River . Population , 54,887 .
德国中西部一城市。是鲁尔河流域埃森的工业城郊。人口54887。