下图所示,如<img src='https://img2.soutiyun.com/ask/uploadfile/5187001-5190000/a7ed22281d70fdbaf613330de1df4fdf.png' />为以O为圆心的圆弧,此凸轮机构的推程运动角是( )。

A.160° B.130° C.120° D.110° <img src='https://img2.soutiyun.com/ask/uploadfile/5187001-5190000/a2de4ebb12278b86a52525c159b37b66.png' />

时间:2023-01-14 17:43:37

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