wear-out-failure period

例句：

1. 1. The engine has reached its wear-out-failure period.
   发动机已经到达了磨损失效期。
2. 2. During the wear-out-failure period, the machineneeds to be repaired or replaced.
   在磨损失效期，机器需要修理或更换。
3. 3. The manufacturer recommends that the productshould be used within its wear-out-failure period.
   制造商建议产品应在其磨损失效期内使用。