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当量齿轮

题目标签:当量齿轮齿轮
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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.

【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】锥齿轮的当量齿轮是()

A.
锥齿轮大端齿廓形状对应的齿轮
B.
锥齿轮小端齿廓形状对应的齿轮
C.
锥齿轮齿宽中点处的齿廓形状对应的齿轮