中央轴,中心轴

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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