单词kepler-s-law
网络: 卜勒定律
We"ll talk about this much later when we deal with orbits and with Kepler"s Law.
在谈到轨道和开普勒定律时，我会详细介绍这一点的。
But, Kepler"s law would also be true, actually, if things were going away.
开普勒第二定律当然也对，如果东西远离了。
Outside the nucleus the rotational velocity would decrease geometrically with distance from the center, in conformity with Kepler"s law.
而根据开普勒定律，随着距中心距离的增加环绕速度应该呈几何递减。
That"s Kepler"s law number one.
这是开普勒第一定律。