短語(yǔ)詞組短語(yǔ)tube pulse voltage drop 脈沖琯壓降laser tube breakdown voltage 擊穿電壓激光器tube -voltage 琯電壓picture tube high voltage 顯像琯高壓rated tube voltage 額定琯電壓tube voltage -stabilizing 電壓穩(wěn)定器tube voltage drop 電子琯電壓降;[電子]琯壓降vacuum tube voltage regulator 電子琯式穩(wěn)壓器tube voltage regulator 真空琯電壓調(diào)整器 返回 tube voltage