此外,该轴偏离旋转轴线。
A simple proof of six invariants under the transformation of spin axis is put forward.给出了二次曲面在转轴变换下的六个不变量的简易证明。
Since that pulls mass closer to the planet's spin axis, it causes the planet to rotate faster - just as an ice skater spins faster when she pulls her arms towards her body.由于质量朝地球旋转轴靠拢,这就导致地球旋转速度加快- - -就像一个速度滑冰选手,当她把胳膊向身体收拢时就会旋转得更快。