axis of rotation

基本解释

The Earth's axis of rotation is tilted in relation to the ecliptic plane, an imaginary surface through Earth's orbit around the sun.
地球的自转轴与黄道面呈一定角度。黄道面是地球公转轨道所在的一个假想平面。
You have a spinning wheel, but that spinning wheel is mounted in such a way that you cannot put a torque on the axis of rotation of the spinning wheel.
你们有一个旋转的轮子，但是,它安装的方式使你无法,使力于旋转的轮子,转动的轴心上。
The radius from the axis of rotation-- - the axis of rotation is here-- and the distance from here to here, though you may not think so, is about 15 meters.
半径是这个转动轴-,转动轴在这里-,距离从这里到这里，你们也许想不到，有15米。

Today motion sensing has progressed to being three-axes of acceleration, and three axis of rotation (technically called gyroscopes).
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