带传动工作时,设小带轮主动,则带内应力的最大值发生在带 。
A. 绕入大带轮处
B. 绕出小带轮处
C. 绕入小带轮处
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V带带轮越小,弯曲应力越大,带的寿命越低。( )
A. 对
B. 错
There was a ________ expression on the child’s face. (content)
This part of the country is sparsely _________. (inhabit)
She talked to me without _______. (restrain)