为什么大多数的轴设计成阶梯形?
参考答案:
从等强度的轴而言,形状应是抛物线回转体,但这样加工困难,安装轴上零件都困难;为了接近等强度并,且容易加工,故设计成阶梯轴。
为什么大多数的轴设计成阶梯形?
参考答案:
从等强度的轴而言,形状应是抛物线回转体,但这样加工困难,安装轴上零件都困难;为了接近等强度并,且容易加工,故设计成阶梯轴。
完形填空。 | |||
Charlie Chaplin was the first international star of the modern era. He was especially beloved | |||
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