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【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
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参考答案:
参考解析:
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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】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
相关题目:
【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】齿轮的润滑主要靠()
A.
边界油膜
B.
刚性油膜
C.
弹性油膜
【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
【单选题】只要()的齿轮就能互相啮合。
A.
齿数和模数相同
B.
模数和压力角相同