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
Linear bearings do not bear the rotating load, otherwise it can lead to accidents.
直线轴承不承受旋转载荷，否则可以导致意外事故。
3
Continuing the gradual wear and tear will cause damage to the bearing parts, and eventually lead to loss of dimensional precision bearings and other related issues.