单词：central axis
central axis的用法和样例：
例句
- The force to be measured must be applied concentrically along the central axis as far as possible.所测量的力必须尽可能集中地沿着中心轴施加。
- The orientation of the minor axis of the ellipses is the same as that of the central axis, and is perpendicular to its surface.椭圆的辅助轴方向与中心轴相同，并且垂直于其表面。
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