The apparatus that reduces friction from the wheel/rail interface to the car gives passengers in a car a smoother ride.
举一反三
- wheel/rail interface
- High-speed rail has advantage over automobiles in that it can move passengers at speeds far ________ than those possible by car, while also avoiding _________.
- In the car accident, neither of the passengers was injured.（)
- 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
- Bruce Stephen gripped the ________ wheel hard as the car bounced up and down.