求助：使用uel的inp文件中关于节点自由度定义的问题

heiya168

刚刚开始做uel，在inp文件中使用uel时，查看帮助文件的说明，这个例子实在是搞不明白怎么回事，求助前辈高手给一点指导!谢谢！

Example
The above procedure continues using this new list to define additional degrees of freedom in accordance with the new node and degrees of freedom. For example, consider a 3-node beam that has degrees of freedom 1, 2, and 6 at nodes 1 and 3 and degrees of freedom 1 and 2 at node 2 (middle node). To order degrees of freedom 1 first, followed by 2, followed by 6, the following input could be used:

*USER ELEMENT
1
1, 2
1, 6
2,
3, 6
In this case the ordering of the variables on the element is:

Element variable number Node Degree of freedom
1 1 1
2 2 1
3 3 1
4 1 2
5 2 2
6 3 2
7 1 6

heiya168

inp文件中，每一行代表的意思是什么？帮助文件头都看大了也没明白