| 摘要 |
The frames (2,4) detachably connected by a coupling (3) are moved on a track (8) using under carriages (5). One end of a bridge girder (14) is connected to the frame (2) and the other end (17) is supported on the frame (4). A guiding unit (18) is provided to move the end (17) of the bridge girder on the frame (4) along longitudinal direction. |
