更换制动片时，应同时更换扩张弹簧、制动活塞减震板和制动卡钳紧固螺钉。
The expanding spring brake-piston damping plates and brake calliper fastening screws must be replaced whenever the brake pads are changed.
这保证了事物不会由一定质量被压缩成为一个无限大密度的“奇点”，相反地，事物像弹簧一样反弹，并且开始重新扩张。
This prevents matter from compressing indefinitely to a singularity of infinite density. Instead, matter rebounds like a spring, and starts expanding again.
扩张式自激超越弹簧离合器是一种新型离合器。
The expanding self_energizing overrunning spring clutch is a new type of overrunning clutch.
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