Hello, I'm currently translating a mechanical manual. I would like to know the real meaning of 2 words' series. Here they are: - Buzz to Roar - Rustle patter For the context, this is a mechanical manual, and theses words characterize sounds. I know the meaning of each words separately. It seems easy but there are many words which "sounds" similar For example : "scoring, and seizing", they mean "grippage", but "score" means "strie". So it's quite difficult to do the difference, and particularly to know how to use them. Thank you for you answer! Cheerio! Phil.