一对标准圆柱齿轮传动,若z1=18,z2=72,则这对齿轮的弯曲应力( )

一对标准圆柱齿轮传动,若z1=18,z2=72,则这对齿轮的弯曲应力( ) A.σF1>σF2 B.σF1< σF2 C.σF1=σF2 D.σF

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________ was quoted by the respondent.选择一项:A. the

________ was quoted by the respondent.选择一项:A. the PRC General Civil LawB. Civil

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