1·The prime motor rotates in a fixed direction and the alternating motion of the carrier bar is accomplished by the crank-rocker mechanism.
电动机单向旋转，用曲柄摇杆机构换向，实现悬点的往复直线运动。
2·The rocker swing Angle equations of the characteristic spherical four-bar linkages are given in...
文中给出了特征球面四杆机构摇杆摆角公式，并结合实例绘制了摇杆摆角图谱曲线。