Four part of a system
2 answers
What system? Repost with a more specific version of your question.
What kind of system? Systems can have any numner of parts.
Do you mean "part four" or "fourth part"? "Four part" makes no sense, unless you are talking about something like music.
Do you mean "part four" or "fourth part"? "Four part" makes no sense, unless you are talking about something like music.