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【简答题】

滚齿加工齿轮的误差来源有______、______、______和______。

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题目标签:齿轮误差滚齿
参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...

A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.

【单选题】量化误差的数值()

A.
可能是正值也可能是负值
B.
只能是负值
C.
是一个常数
D.
只能是正值

【多选题】系统误差的特点有

A.
重复性
B.
可测性
C.
某种确定的原因引起
D.
可消除或减小

【多选题】滚齿时,齿轮基节超差的原因是()。

A.
齿坯安装偏心
B.
分度蜗轮误差大
C.
分度蜗杆松动
D.
升降丝杠松动
E.
工作台下压板间隙大