偏へん向こう板ばん

noun

deflection plate

Technical term used in electronics, especially in cathode-ray tubes, to steer electron beams.

• ブラウン管かんでは、偏へん向こう板ばんが電でん子しビームの方ほう向こうを変かえる。

  In a cathode-ray tube, the deflection plates change the direction of the electron beam.