一、定向矢量尺寸链封闭环具有确定方向的矢量尺寸链称为定向矢量尺寸链。这种矢量尺寸链有时也包含一部分标量组成环。其解算特点为,不仅需要确定求各组成环矢量模在封闭环方向上的分量的方法,而且还要导出一定的 First, the directional vector size chain Closed-loop vector dimension chain with a certain direction is called directional vector size chain. This vector size chain sometimes also contains a part of the scalar component ring. The solution to the problem is that not only the method of determining the components of each component loop vector module in the closed loop direction but also the method of deriving a certain