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结合位于平、竖曲线上空心板梁的安装问题 ,设计制作了双导梁架桥机 ,介绍该架桥机的特点和架梁情况
Combined with the installation problems of hollow slabs located on the flat and vertical curves, a double-girder bridge erecting machine is designed and manufactured to introduce the characteristics of the erecting machine and the condition of the girder