• 2021-04-14
    曲柄OA在图示瞬时以w0绕轴O转动,并带动直角曲杆O1BC在图平面内运动。若取套筒A为动点,杆O1BC为动坐标系,则相对速度的大小为____________,牵连速度的大小为___________。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/f3167781feb746b89571901ebde5c400.png