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【单选题】

如图所示轮系中,齿轮()称为惰轮。

A.
1和3'
B.
2和4
C.
3和3'
D.
3和4
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题目标签:惰轮齿轮
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.

【单选题】在轮系中惰轮的作用()。

A.
改动传动比
B.
改变转向
C.
改变轮系的空间尺寸
D.
增加轮系的效率

【单选题】定轴轮系传动比与轮系中使用惰轮的数量之间的关系为

A.
与轮系传动比的大小相关
B.
与轮系传动比的大小无关
C.
使用奇数个惰轮会改变轮系传动比的方向
D.
使用偶数个惰轮会改变轮系传动比的方向