main longeron

• 主梁

main longeron的用法和样例：

例句

1. The main girders support I-section transverse ribs.
   主梁支承着工字梁的横向肋。
2. Mobile belt tail pieces' pedestal main girder is a main support of the ambulant components and stageloaders.
   自移机尾基架主梁是小车和转载机机头的主要支撑体。