English translation: Please add a design for fixing points in the pipe support. The fixed support of the pipe system (i.e., all three-way displacements must be constrained to 0) requires a combination of a guide and a limit support. Two hangers will be generated when generating the hanger. Original text: 请在pipe的支架中增加固定点的设计。管系的固定支架（即三向位移都要被约束为0）需要用一个导向加一个限位支架组合，生成支吊架的时候会出现两个支吊架.