A city of west-central Germany at the confluence of the Rhine and Ruhr rivers. It is a major inland port and a steel-producing center. Population, 522,829.

• 多伊士堡：德国中西部城市，位于莱茵河与鲁尔河汇流处，是主要的内陆港口和钢铁生产中心，人口522,829