over electric current tripping device
...过电流脱扣器、单相短路电流 [gap=354]Key words: the long time delay, the short time delay, instantaneous, over electric current tripping device, single phase short-circuit current ..
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over electric current tripping device
过电流脱扣装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。