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一、桥式起重机主梁变形的应修界限新出厂的桥式起重机在空载时,其主梁具有一定的上拱值,如图1所示。
First, the bridge girder deformation of the main beam should be revised boundaries New factory overhead crane in no-load, the main beam has a certain value on the arch, as shown in Figure 1.