... safety and security 安全和治安 limit-of-work line 工作期限 local or minor streets 当地的或小街道 ...
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Role: at start ballast circuits, the flip-flop because of the co-ordination of the moment have a high-voltage, so that the discharge lamp to start. Line at work to play the role of limit tube current.
作用:镇流器在启动线路中,由于触发器的配合产生瞬间高压电,使灯管放电启动。
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