The coning effect is caused by the motion of the rigid body axis.

圆锥运动是刚体运动的几何效应。

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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。

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The illness can stress the immune system and the hypothalamic-pituitary axis, a system that controls many body processes.

这种疾病可以对免疫系统和下丘脑-垂体轴增加负担。 下丘脑-垂体轴是一种控制许多机体运作的系统。

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