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【简答题】

带轮、链轮、齿轮各有什么特点?

题目标签:链轮齿轮
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参考解析:
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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.

【单选题】链传动设计中,一般链轮的最大齿数限制为150,是为了()

A.
减小链传动的不均匀性
B.
限制传动比
C.
防止过早脱链
D.
保证链轮轮齿的强度

【单选题】发现堆垛机的链条链轮有损坏时,下列哪项是正确的?

A.
必须及时更换相关配件
B.
可以继续进行作业
C.
置之不理