- Reduced Frequency Responses
- Engineering: RFR
Универсальный русско-английский словарь. Академик.ру. 2011.
Универсальный русско-английский словарь. Академик.ру. 2011.
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RFR — engin. abbr. Reduced Frequency Responses telecom. abbr. Reduced Frequency Responses … United dictionary of abbreviations and acronyms
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