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【判断题】

剃齿刀的旋向应与被剃齿轮的旋向相反。

A.
正确
B.
错误
题目标签:剃齿齿轮剃齿刀
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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.

【单选题】珩齿加工与剃齿加工的主要区别是( )。

A.
刀具不同
B.
成形原理不同
C.
所用齿坯形状不同
D.
运动关系不同

【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