The circuit of the first group spatial linkages is studied.
对空间第一组机构回路问题进行了研究。
The inertia counterweights determined by this method can reduce the shaking moments of spatial linkages.
此法计算出的配重具有最小转动惯量，因此可降低机构的振动力矩。
This article presents the unit vector method for the full shaking force balancing of multi-loop spatial linkages.
本文提出了多环空间连杆机构摆动力完全平衡的单位向量法。
Finally, the thesis analyzes the match of the spatial linkages of regional economic contacts and inter-regional economic relationship.
最后，进行区域经济联系与地缘经济关系测度结果的匹配分析。
A practical method for approximate shaking force balancing of spatial linkages is proposed by attaching counter weights to frame pivoted links.
提出了通过在连架构件上附加质量配重实现空间连杆机构摆动力近似平衡的方法。
A practical method for approximate balancing of shaking force and shaking moment of spatial linkages is proposed by attaching counter weights to frame pivoted links.
提出了通过在连架构件上附加质量配重实现空间连杆机构摆动力近似平衡的方法。
The sufficient and necessary condition for complete inertial force balancing of open-chain spatial linkages is derived and the concept of relative balancing is presented in this paper.
本文导出空间开链型机构惯性力完全平衡的充分必要条件，提出相对平衡的概念。
Using the mass dynamic substitution concept, the complete balancing of shaking force and shaking moment of closed loop spatial linkages may be reduced to that of open loop spatial kinematic chains.
其基本思路是通过质量动替代的途径，将空间闭链机构摆动力和摆动力矩的完全平衡转化为空间树状链摆动力和摆动力矩的完全平衡。
Second, the thesis studies the spatial linkages of regional economic contacts and inter-regional economic relationship using the modal that appearing in the part three, and then analyze the results.
其次，依托论文第二部分所构建模型及《中国城市统计年鉴》和《中国公路里程和空车配货指南》，进行区域经济联系和地缘经济关系的测度研究，并对结果进行分析；
Different spatial patterns, cultures, planning policies, and various driving forces of urban growth or decline result in changes of land use and functional linkages between urban and rural areas.
不同空间模式、文化、规划政策和迥异的城市化或城市衰退的驱动力等因素导致城乡之间出现土地利用联系和功能关联。
The movability of the spatial four-bar linkages is analyzed by the principle of topologic transformation.
本文运用拓扑变换原理，对空间四杆机构的可动性进行了分析研究。
A spatial model for the link-length types of the 5-bar linkages is established in this paper.
本文建立了平面五杆机构尺寸型的空间模型，把五杆机构的全部尺寸型纳入到了一个有限的封闭空间内。
A spatial model for the link-length types of the 5-bar linkages is established in this paper.
本文建立了平面五杆机构尺寸型的空间模型，把五杆机构的全部尺寸型纳入到了一个有限的封闭空间内。
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