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【单选题】

内齿轮尺寸参数的特点是______。

A.
齿根圆>分度圆>齿顶圆>基圆
B.
基圆<齿根圆<分度圆<齿顶圆
题目标签:齿轮内齿轮参数
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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

【单选题】内齿轮泵磨损小的主要原因是()

A.
工作压力底
B.
转速底
C.
润滑条件好
D.
相对滑动速度小

【单选题】内齿轮尺寸参数的特点是______。

A.
齿根圆>分度圆>齿顶圆>基圆
B.
基圆<齿根圆<分度圆<齿顶圆

【单选题】晶体管中的“β”参数是()。

A.
电压放大系数
B.
集电极最大功耗
C.
电流放大系数
D.
功率放大系数
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】内齿轮泵磨损小的主要原因是()
A.
工作压力底
B.
转速底
C.
润滑条件好
D.
相对滑动速度小
【单选题】内齿轮尺寸参数的特点是______。
A.
齿根圆>分度圆>齿顶圆>基圆
B.
基圆<齿根圆<分度圆<齿顶圆
【单选题】晶体管中的“β”参数是()。
A.
电压放大系数
B.
集电极最大功耗
C.
电流放大系数
D.
功率放大系数