1·There is a third movement the hypothesis covers called precession.
这个假说所包括的第三种运动叫做岁差。
2·Precession, basically is the change in the direction of earth's axis of rotation.
岁差，基本上是地球自转轴方向的改变。
3·The Earth's axis in its orbit does the same thing because of a phenomenon called precession, and is now facing a different star than it did 5, 000 years ago.
地球的地轴做了类似的事情，因为一种现象叫做岁差，现在所面对的是与5000年前不同的星星。
4·It is due to a phenomenon called the precession of the equinoxes.
这是由于岁差现象所导致。
5·The moment of precession and nutation is a prerequisite to explain these phenomena and one main way of building nutational serial of rigid Earth.
岁差章动力矩是解释这些现象的前提条件，也是建立刚体地球章动序列的最主要方法之一。