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  1. tetrode

    • IPA[ˈtetrōd]

    美式

    • n.
      a thermionic tube having four electrodes.
    • noun: tetrode, plural noun: tetrodes

    • 更多解釋
    • IPA[ˈtɛtrəʊd]

    英式

    • n.
      a thermionic valve having four electrodes.

    Oxford Dictionary