low-voltage focus 低压焦点
high voltage focus potentiometer 高压聚焦电位器
focus voltage 聚焦电压
beam-focus voltage 束聚焦电压
low focus voltage electron gun [电子] 低聚焦电压电子枪
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Electric parameters of high voltage focus potentiometer might change thus influence the whole property of TV.
高压聚焦电位器在高热潮湿环境下电参数可能会变化，从而影响到电视机的整体性能。
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