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点评
对!铁芯卷绕也很有关系,后期的消磁工序也有影响,当时没有条件测试,说话过于满了。但是对于声音来说,不见得就不好,铁芯卷绕的松紧度,绝缘层的厚度,都对测试结果有影响。唯一不好测试的就是电网杂波和干扰
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