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当凸轮机构的压力角的最大值超过许用值时，就必然出现自琐现象。
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当凸轮机构的压力角的最大值超过许用值时，就必然出现自琐现象。
A、正确
B、错误
时间：2021-09-02 13:16
关键词：
和学
中国石油大学
《机械原理》
答案解析
B
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当凸轮机构的压力角的最大值超过许用值时，就必然出现自琐现象。
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