• 2022-06-17
    图示销钉的切应力[img=22x14]1803d617bef8a57.png[/img] ,挤压应力[img=36x17]1803d617c8512d5.png[/img] 。[img=149x192]1803d617d445ec6.png[/img]
    A: [img=51x44]1803d617dd64ccc.png[/img];[img=123x48]1803d617eccac59.png[/img]
    B: [img=54x44]1803d617f589263.png[/img];[img=123x48]1803d617ff0d8fe.png[/img]
    C: [img=54x44]1803d617f589263.png[/img];[img=65x44]1803d61811517de.png[/img]
    D: [img=54x44]1803d617f589263.png[/img];[img=71x44]1803d61821dd10c.png[/img]
  • 举一反三