In general, you can use "or" to connect the concept of juxtaposition.
However, people often use "or" to connect the above concepts with the following concepts, which will lead to the unclear scope of protection required by the claims.
For example, the fiber is silk or animal fiber. This is not feasible, because animal fibers include silk.
Some sentences that can be used in ordinary articles are not allowed in the claims.
For example, the acid is acetic acid or the like. This is not good, "or its analogues" should be deleted.