- 消: disappear; vanish
- 弧: arc bow
- 灭: go out
- 消弧: arc blow out; arc extinction; arc extinguishing; arc suppression; arc-suppression; crowbar circuit; extinction angle; extinction of arc
- 灭弧: arc extinction; arc extinguishing; arc suppressing; arc-suppression; blowout; extinction of arc; quenching
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