motion arm操作臂motionn.移动；动作；打手势；示意；提议；大便v.示意；运动；向 ... 打手势motion of membrane膜片运动motional induction动生电磁感应motion orientation定运动方向motion unsharpness运动性模糊motion-detecting运动物体探测motion constraints运动约束motion vector data活动矢量数据motion coefficient波动系数motion recognition运动识别motion development动作发展