| 摘要 |
A carriage body structure for public transportation vehicles, having two sides comprising a latticework of uprights and stringers supporting each a sidewall longeron member whereto a respective roof longeron member is rigidly connected. The roof longeron members form the base members for the roof of the carriage body structure. The roof structure further comprises arcuated crossbeams connected with and extending between the roof longeron members, and wide elongated covering sectional members resting on the crossbeams and extending in the direction of the roof longeron members.
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