A city of west-central Germany in the Ruhr Valley north of Essen. First mentioned in the ninth century, it is now highly industrialized. Population,87, 231.

• 马尔德国中西部一城市，位于埃森市以北鲁尔峡谷内。最早在9世纪被提及，现在为工业高度发达城市。人口87，231