Years of operation of rubber draft gears on metro cars finds that there Cxi5t widely therein such problems as rigidimpact, collision caused by clearances. The rubber pieces are damaged severely.
从多年使用的情况来看，我国地铁客车橡胶缓冲器，普遍存在刚性冲击、间隙冲撞等现象，橡胶片破损严重。
2
The impact on Spain’s productivity is compounded by rigid wage rules.
这种临时性合约和刚性的工资制度一起影响着西班牙的生产效率。
3
Although apparently rigid, bones exhibit a degree of elasticitythat enables the skeleton to withstand considerable impact.