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近日在測(cè)試5類大對(duì)數(shù)網(wǎng)線衰減異常,25對(duì)的衰減正常,但是50對(duì)和100對(duì)的到80MHZ以上,就波動(dòng)非常大。請(qǐng)教各位高手怎么回事?
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