This is hard to achieve with rigid bearings and could lead to strange new modes of locomotion, allowing robots to walk or roll, depending upon which is more appropriate.
这用刚性轴承是难以实现的，它将衍生出一种全新的移动模式，机器人将或走或滚，全看哪种方式更合适而已。
2
Presents a space motion model (SMM) of multiple rigid bodies with varying mass for the description of the intercept problem of homing missiles with roll stabilization.