"master controller" — Kollokationen-Wörterbuch Englisch

master controller Kollokation
Automatische Übersetzung (wir garantieren seine Korrektheit nicht): mistrzowski kontroler
  1. master Substantiv + controller Substantiv
    Schwache Kollokation

    He might have had his hand on the master controller, which accelerates the train by adjusting electricity fed to the motor.