Spherical linkages are constituted entirely of revolute pairs.
球面连杆完全是有转动副组成.
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In spheric linkages, the axes of all revolute pairs must intersect at point.
在球面连杆机构中, 所有的转动副的轴必在一点上相交.
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Aimming at high positioning accuracy demands of revolute joint, closed - loop feedback using circular grating adopted.
从提高位置精度出发,采用了基于圆光栅全闭环反馈的回转关节控制方案.
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In spheric linkages, the axes of all revolute pairs must intersect at a point.
在球面连杆机中, 所有回转副的轴必须在一点上相交.
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