单选题
发布日期:2021-03-22
radially from the shaft
parallel to each other and to the shaft
parallel to each other but at a right angle to the shaft
at an angle to each other and to the shaft
轴向通常是针对圆柱体类物体而言,就是圆柱体旋转中心轴的方向,即与中心轴共同的方向。“径向”垂直于“轴向”,即圆柱体端面圆的半径或直径方向。径向与轴向空间垂直。物理中分析物体受力或运动时也会用到这个概念。
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