underframe 的定义
- the lower frame on which a vehicular structure rests: the underframe of a bus.
更多underframe例句
- On this underframe the superstructure or frame is erected to form the body of the car.
- M, is of the internal pole type, and is supported on the underframe of the wagon.
- The underframe is provided with spring axle boxes, and also with spring buffers and drawbars.