... metallographic（al）金相学的 metallographic testing金相检验 metalloid准金属、半金属、类金属（如As、Sb、B、Te具有金属和非金属两种性质） ...
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The present paper describes the failure analysis of roller -coupling by testing the optical, metallographic and mechanical properties, offering you the fracture reasons.
本文介绍了利用光学金相、力学性能测试方法对轧辊联轴节进行了失效分析并提出了断裂原因。
The new testing system is capable of doing very fine fatigue tests on the metallographic level.
由此研制的疲劳试验装置，能够在金相级的水平上进行十分精细的疲劳试验。
Fracture tooth of gear shaft in well drilling pump was analysed by chemical analysis, mechanical testing metallographic examination macro and microfractography.
采用化学成分分析、力学性能测定、金相检验以及断口宏、微观分析等方法，对钻井泵齿轮轴断齿进行了分析。
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