The expandingspring brake-piston damping plates and brake calliper fastening screws must be replaced whenever the brake pads are changed.
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。
2
A relative systemic spring blasting design is put forward, including the blasting parameters choice, the expanding springing engineering and the initiating system.
提出了比较系统的药壶爆破设计方法,包括药壶爆破参数的确定、扩壶施工、起爆网络等。
3
This prevents matter from compressing indefinitely to a singularity of infinite density. Instead, matter rebounds like a spring, and starts expanding again.