Functional restrictions cannot be used, and this common sense is no longer added.
In one case, taking mechanical application as an example, function statements are used.
In fact, functional descriptions are often similar to general descriptions.
However, most functional descriptions are considered to lack the support of embodiments.
Overview On the contrary,
AB AC AD
You claim to write the characteristics of a and bcd after the upper position. E is a partial function description, and AE may be considered as a general description by the examiner.
It is a functional limitation to write AE directly without writing the embodiment.
Another case of general description, without functional statements, is to integrate the above bcd restrictions, but to use a structural description-this is basically difficult to write well, but many times it reflects the basic technical knowledge of patent agents.
You didn't understand the last question.