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近几年来,在西德工程中起重量大的臂式吊机正获得广泛使用。这种吊机常用于装配式民用工程及分散工程的建筑结构安装。
In recent years, arm cranes have been widely used in the West German project. This crane is commonly used in the assembly of civil engineering and decentralized construction of the installation structure.