电弧频率 arc frequency

自然圆弧频率 natural circular frequency

弧流频率 arc current frequency

高频起弧电路 HF arc starting circuit

高频稳弧器 high frequency arc stabilizer

高频引弧 high frequency arc ignition ; HF

弧焊旋转变频机 [电] arc welding rotary frequency convertor

交流工频电弧试验 AC power arc tests

高频电弧 High-frequency arc

高频引弧器 HF arc starter