How to judge whether application articles are not affiliated with each other?

The content of how to determine non-affiliation in practical articles is as follows. There is a superior-subordinate relationship between directly subordinate agencies, and they can be written in orders, notices, reports, etc., for arranging deployment work or requesting instructions and reporting work. If there are business exchanges between agencies that are not affiliated with each other, they need to use letters, invitation letters, etc. to express their attitude towards discussion or joint work. If there is no affiliation, special caution must be exercised when different agencies appear in the same document or carry out work, otherwise they will make a fool of themselves and make it difficult to coordinate work.