- field-effect tetrode
- 场: a level open space; threshin ...
- 效: effect; efficiency; result
- 四极管: tetrode; quadrode; four-elec ...
- 场效应四极管: field effect tetrode; field-effect quadrode; field-effect tetrode
- 四极管: [无线电] tetrode; quadrode; four-electrode tube; four-element tube◇四极管放大器 tetrode amplifier
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