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【判断题】

变位齿轮是标准齿轮。

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
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.

【多选题】历谓标准齿轮就是齿轮的( )均取标准值。

A.
齿顶高系数
B.
径向间隙系数
C.
节圆半径
D.
压力角
E.
模数

【多选题】开式齿轮的主要失效形式是__。

A.
轮齿折断
B.
齿面磨损
C.
齿面胶合
D.
齿面点蚀

【多选题】变位齿轮分为()。

A.
正变位
B.
角度变位
C.
负变位
D.
横向变位