当运输汽车运行时间已达5万小时时,其预期寿命将成为人们迫切关注的重要问题。位于不列颠哥伦比亚省东北部的布尔穆斯(Bullmoose)矿设备维修经理 R.琼斯说:“1983年当我们购置我们要用的汽车时,5万作业小时是我们所期望的汽车寿命。”“现在的情况是我们还在使用这些汽车,但我们却很少更仔细地研究这些汽车的状 When the transportation car has reached 50,000 hours of operation, its life expectancy will become an important issue for people to pay close attention to. R. Jones, equipment maintenance manager at the Bullmoose mine in northeastern British Columbia, said: “When we purchased the car we used in 1983, 50,000 operating hours were our expected vehicle life.” “Now The situation is that we are still using these cars, but we rarely study these cars more carefully.