• 2021-04-14
    铰链四杆机构ABCD中,杆长分别为:a=3 cm,b=5 cm,c=6 cm,d=7 cm。下面哪一个可以构成曲柄摇杆机构(00a000a000a000a000a000a000a000a000a000a0 )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/b85ffdfd2b7c48b3b4afa9fd843f6d74.png