The paper presents concept of cost estimating throughout the machine life.
本文提出了通过机械设备生存期评估其成本的概念。
I got the fright of my life when the machine burst into flames.
机器突然起火燃烧，简直吓破了我的胆。
What's the use life of this machine?
这台机器的寿命是多长时间？
The service life of a machine depends chiefly upon how it is being used.
机器的寿命主要取决于它如何使用。
The service life of a machine depends chiefly upon how it is being used.
机器的寿命主要取决于它如何使用。
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