针对平面并联五杆机构提出了基于总体灵活度的运动学设计方法。
Directed against planar parallel 5-bar linkage a met hod of kinematics design based on overall flexibility was put forward.
结果表明，空气动力学粗糙度和零平面位移总体是逐年递增的。
We find the aerodynamical roughness length and the zero plane displacement is increasing with the development of the urbanization in recent decade years.
结果表明，空气动力学粗糙度和零平面位移总体是逐年递增的。
We find the aerodynamical roughness length and the zero plane displacement is increasing with the development of the urbanization in recent decade years.
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