• 2022-05-28
    阶梯轴尺寸及受力如图所示,AB段的最大切应力τmax1与BC段的最大切应力τmax2之比τmax1/τmax2=。http://p.ananas.chaoxing.com/star3/origin/46dee30ee9d7aec851f993d91c1d9260.png