One problem with the collision hypothesis is the question of how a satellite formed in this way could have settled into the nearly circularorbit that the Moon has today.
碰撞假说的一个问题是，以这种方式形成的卫星是如何在月球现在的近乎圆形的轨道上运行的。
2
You've got negative charge in motion, and it's in a circularorbit.
负电荷在运动，它们处在一个环形的轨道中。
3
That also means that the period t must be larger than the period in your circularorbit.