该机构从全球各地收集地球自转的测量值,并取其平均数。
It collects and averages measurements of the Earth's rotation from around the world.
这样做的目的是为了在地球自转的同时,使卫星能够绕地球同速转动。
The idea is that the craft circles ourplanet at the same speed as Earth’s rotation about its axis.
白天的时长减少了1.26微秒,而地球自转的地轴也移动了8厘米。
The length of day itself was shortened by 1.26 microseconds and displaced it on its axis by eight centimeters.
One way to think about it, if we want to use a classical analogy, which often helps to give us an idea of what's going on, is the spin of an electron, we can picture it rotating on its own axis.
如果我们用一个,经典的比喻来考虑它的话,这经常会帮助我们建立起一些概念,就是我们可以把电子的,自旋想象是它绕着轴自转。
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