This question is similar to this one (and other on the site), but with three elements in the compound word. In a technical context, where a bin is a range of frequency values and a bin is referred to by its middle frequency, I would like to refer to frequencies corresponding to bin centers.
➞ My question boils down to: What is the plural of bin center frequency?
From the answer to the linked question, it could be the bins center frequencies as there are multiple bins which have each a single center frequency. but the answer is focused on two-word compounds, so I'm not sure it applies.
On the other hand occurrences on Google are respectively 1,000+ for bin center frequencies and 80+ for bins center frequencies. To me bin center frequencies refers more to the several frequencies of the center of a single bin. I also found the form the bin centers to denote the centers alone, so maybe I could also use the bin centers frequencies, but I feel the bin-centers frequencies would be more correct in this case.
I'm really perplexed. Could you please tell me what is the most correct sentence, and if different, what would be the most usual form in a technical writing?