... arc extinction 灭弧，消弧 arc extinguish chamber 灭弧室，消弧室(断路器) arc extinguisher 灭弧器，火花消除器 ...
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Thus it has the important theory and practical significance to conduct the research in on-line detecting method for vacuum degree in the vacuum arc extinguish chamber and the system.
因而对真空灭弧室真空度在线检测方法和系统进行研究具有重要的理论和现实意义。
参考来源 - 真空断路器真空度在线检测系统的研制·2,447,543篇论文数据，部分数据来源于NoteExpress
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