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maximum usable frequency

фіз. 最高使用周波数 (saikō-shiyō-shūhasū)
 Англійський тезаурус
Maximum Usable Frequency
тех., абрев. muf
IT, абрев. MUF (max freq during sunspot activity)
Maximum Usable Frequency max freq during sunspot activity
абрев. MUF