An electron tube used to amplify or generate ultrahigh frequency by means of velocity modulation.

速调管一种用速度调节的方法放大或产生超高频率的电子管.

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Electronic ballast ultrahigh frequency ( UHF ) can avoid the intrinsic problem of acoustic resonance of HID lamps.

采用 超高频 电子镇流器能有效克服高强度气体放电灯所固有的声谐振问题.

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