frequency changer,frequency converter /ENG-ELECTRICAL/
[DE] Frequenzumsetzer 1)
[EN] frequency changer; frequency converter
[FR] changeur de fréquence; convertisseur de fréquence
frequency converter,frequency convertor /ENG-MECHANICAL,ENG-ELECTRICAL/
[DE] Frequenzwandler
[EN] frequency converter; frequency convertor
[FR] convertisseur de fréquence