... arc-through loss of control 通弧失控 arc-tight 耐弧的，隔弧的 arc time 燃弧时间 ...
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... arc tight 耐弧的 arc-tight 隔弧的; 耐弧的 assembly tight 组合件密封 ...
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arc tight 耐弧的
The utility model can solve the problems of no tight attraction, intense vibration, noise and electric arc when alternate current supplies power. The attracting voltage can be lowered to 120V;
组成能解决交流供电时产生的吸合不紧密，强烈振动、噪声、甚至发生电弧等问题。
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