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水量减半，厂长急！潜水泵水量减小的元凶找到#三相电机##叶轮#
麻绳飘过，叶轮堵，水量减半，厂长急！潜水泵水量减小的元凶找到，30千瓦潜水泵三相电机绝缘值0.5，换做是你，会继续使用吗？#三相电机##叶轮##vlog##我的vlog##机电##电工#
大南砸水泵34/186
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