This paper introduces the needs of customized life design on mechanical product and describes the concept and steps of customized life design.
介绍机械产品进行定制寿命设计的需要，阐述了定制寿命设计方法的概念及设计步骤。
The customized life design technique enhances the mechanical product standard from the qualitative design of strength to the quantitative design of customized life.
定制寿命设计方法将机械产品设计判据由强度的定性设计提高到寿命的定量设计。
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