绞链四杆机构的最短杆与最长杆的长度之和，大于其余两杆的长度之和时，机构（） - 查题网

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成人高等教育 / 机械设计基础

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绞链四杆机构的最短杆与最长杆的长度之和，大于其余两杆的长度之和时，机构（）

A、
有曲柄存在
B、
不存在曲柄
C、
有时有曲柄，有时没曲柄
D、
以上答案均不对

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机械设计基础

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