outer track短语¹⁴⁴⁹⁷²⁺² 基本例句 外圈; 外道 This paper analyses the contact stress between the rollers and the outer track of roller bearing in detail, and then concludes the contact stress of all kinds of the bearing rollers. 本文就三牙轮钻头滚动轴承滚子与外圈之间的接触应力进行了详细的分析，得出各种类型轴承滚子的接触应力分析情况。 cnki