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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The cracking causes of the die casting mould of SKD61 steel were analyzed by chemical composition analysis, mechanical property testing, microstructure examination and fracture analysis.

通过化学成分分析、力学性能测试、金相检验以及断口分析等方法对SKD61钢压铸模具开裂原因进行分析。

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The analysis of automobile engine crankshaft was conducted by macroscopic examination, fracture analysis, chemical composition analysis, metallographic examination and mechanical properties test.

通过宏观分析、断口分析、化学成分检验、金相检验和力学性能检测等方法，对汽车发动机曲轴断裂原因进行了分析。

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While gouty arthritis is diagnosed by aspiration of joint fluid, distinguishing tendinitis versus a sprain versus a fracture requires a clinical examination and possibly an X-ray or magnetic resonance imaging.

CNN: Do I have gout or tendinitis?