The results obtained in this paper show that except for the planar or spherical mechanism and the Bennett mechanism non-existance of other 4R mechanism, and besides the planar mechanism there is one, and only one, RPRP mechanism.
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释义
文中的结果表明;除了平面4R机构、球面4R机构以及Bennett机构外;不存在其它4R机构; 除平面RPRP机构外;还存在且只存在一种RPRP机构.
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