The motion pattern of a scanning point is studied in case a fixed laser beam is pointing at a rotating ball with fixed center.
研究了当用固定不动的激光束扫描球心固定的旋转球体时扫描点在球面上的移动模式。
Objective To explore the influence of topical biomechanical environment in the fracture point after which was fixed with auto control micro motion locking nail (AMLN) on the fracture healing mode.
目的探讨自控微动带锁髓内钉（AMLN）固定后骨折局部生物力学环境对骨折愈合的影响及机制。
The problem of fixed-point motion of symmetrical rigid-elastic system in gravitational field is studied in this paper.
本文研究了怕对称刚-弹系统在重力场中的定点运动。
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