向内和向外移动的范围最后会达到稳定的某个平衡点上。
So you see, that's the difference between stable equilibrium and unstable equilibrium.你们看,这就是,稳定平衡和,不稳定平衡的区别。
Avoding this condition, we can change the integral cranks gravity center and realize stable equilibrium.为避免此种状态的出现,可改变整体曲柄重心,实现稳定平。