lon.ge.ronn.(名词)A major structural member of an aircraft fuselage, running from front to rear.机身大梁:飞机机身从机头至机尾的一个主要构件来源:French 法语 from Old French [beam] 源自 古法语 [大梁] from long [long] 源自 long [长的] from Latin longus * see del- 源自 拉丁语 longus *参见 del-