What is the benefit of floating a wheelset in the bogie
A: it allows the wheelsets radial movement
B: it fixes thewheelsetrigidly
C: it allows the train to travelfaste
D: it reduces vibrations from thewheel/rail interface
A: it allows the wheelsets radial movement
B: it fixes thewheelsetrigidly
C: it allows the train to travelfaste
D: it reduces vibrations from thewheel/rail interface
举一反三
- The apparatus that reduces friction from the wheel/rail interface to the car gives passengers in a car a smoother ride.
- A _____ allows for information from the computer to be printed onto a piece of paper.
- ______is a device attached to a rail to prevent it from creeping in the direction of train travel. A: flat bottom rail B: ullhead rail C: ail ancho D: aseplate
- The Internet allows rural school children about what is happening in the world.
- What _____ to him is whether the job allows him to pursue his studies.