time effect of vibration

• 振动时效

time effect of vibration的用法和样例：

例句

1. The machine is made from steel.It's vibration treated roil to reduce internal stress.
   本机械为钢板结构，经振动时效消除内应力。
2. It shows the good effect of the vibratory stress relieving new technology in production practice.
   显示出振动时效这门新技术在生产实践中的良好效果。