单词：axis of rotation
axis of rotation的用法和样例：
例句
- The earth rotates once a day on its axis.地球绕它的自转轴一天旋转一周。
- The orientation of the equatorial belt suggests the parent star maintained the same spin axis both before and after it exploded.环赤道带的方向说白，前身星在爆发前后的自转轴取向保持不变。
- In this axial turbine, steam always flows along the axis of rotated axis, thus, all blades extend with the radiation shape along the axis outward.在这种轴流式涡轮机中，蒸汽总是沿主轴的旋转轴流动的，因此，叶片由主轴向外呈辐射状展开。
- axis轴
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