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综述了生物摩擦学及表面工程的研究现状，并以人工关节、内固定、种植义齿和人工心脏瓣膜为例，探讨了不同人工器官的失效机理和采用的延寿措施，在此基础上，对今后的工作提出了一些建议。
The current research status of biological tribology and surface engineering was reviewed. Taking artificial joints, internal fixation, implant denture and artificial heart valve as examples, the mechanism of failure of different artificial organs and the extended life measures were discussed. On the basis of this, Made some suggestions.