只要一个基本运动链达到奇异位置时，该复杂机构即处于奇异位置。
When a basic kinematic chain reaches a singular configuration, the complex linkage is at a singular position.
仅当一个基本运动链达到奇异位置时，该复杂机构即处于奇异位置。
Whenever only one of the basic kinematic chains reached to a singular position, it shows that this complex linkage is situated in a singular position.
对平面七杆机构运动链进行型综合，提出四种基本运动链和四种衍生运动链。
Based on type synthesis of the planar seven-bar kinematic chain, this paper put forward four kinds of basic kinematic chain and four kinds of derived kinematic chain.
将吴方法运用到平面基本运动链的位移分析中，完成了一种7杆巴氏桁架的位移分析。
The Wu Method was applied to the forward displacement analysis of planar basic kinematic chains. A 7-link Barravo truss which is associated with 6-link and 9-joint Assur groups was studied.
通过进一步对驱动单元进行结构分解，得到平面六杆机构及三杆四副支链等基本运动链。
Further structural decomposition of the driving unit, several planar six linkage and three bar four kinematic pair branch chains were gotten.
该方法依据机构的拓扑结构特征，将机构分解为若干个有序单开链单元，又进一步划分出各基本运动链。
According to the topological structure characteristics of the mechanism, the mechanism can be decomposed into some ordered single-opened-chains, which can further compose same basic kinematic chains.
根据含复铰平面闭式运动链的基本参数，定义了度谱、构件谱和复铰谱。
The spectrums of degree, structural component and multiple hinges are defined according to the basic parameters of planar closed kinematic chain with multiple hinges.
由生成树的弦将运动链分解成为数目确定的基本回路。
Let the kinematics chain be resolved from the cord of spanning tree into definite numbered basic loops.
由生成树的弦将运动链分解成为数目确定的基本回路。
Let the kinematics chain be resolved from the cord of spanning tree into definite numbered basic loops.
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