allowable wear

例句：

1. 1. The car hasbeen in the shop for several months,and I'm not sure if theallowable wear is still up to date.
   这辆车已经在店里修了几个月，我不确定现在的磨损情况是否还符合标准。
2. 2.The manufacturer recommends that you replace thetires every 5,000miles to ensure safe allowable wear.
   制造商建议每行驶5000英里就更换轮胎，以确保安全。
3. 3. The engineer inspected the machine and found that it hadsignificant allowable wear on the bearings.
   工程师检查了这台机器，发现轴承上有严重的磨损。