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DEVICE FOR PROTECTING THREE-PHASE ELECTRIC INSTALLATION AGAINST INCOMPLETE-PHASE SUPPLY DUTY
DEVICE FOR PROTECTING THREE-PHASE ELECTRIC INSTALLATION AGAINST INCOMPLETE-PHASE SUPPLY DUTY
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机译:用于保护不完整相电源的三相电气装置
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摘要
the invention относитс to electrical engineering and is дл protection electric motors from непол - нофазпых питани regimes.the purpose of изобретени - increased reliability through the предотвраще
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