题目内容

选择联轴器时，应使计算转矩Tc大于名义转矩T，这是考虑________。

A. 旋转时产生的离心载荷
B. 运转时的动载荷和过载
C. 联轴器材料的机械性能有偏差
D. 两轴对中性不好，有附加载荷

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