电压稳定装置
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automatic voltage stabilizing device 自动稳压装置
Charging device voltage stabilizing precision 充电装置稳压精度
Electric supply of filament adopts constant voltage device, which has high voltage stabilizing accuracy, long life and distinct energy-saving efficiency.
灯丝供电采用恒压器，稳压精度高，寿命长，节能显著。E。
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