电线电缆网 > 矿用橡套电缆 > k-20度电缆导体交流电阻与直流电阻之比（完整版）
k-20度电缆导体交流电阻与直流电阻之比 - 无图版
小学生 --- 2008-08-21 10:43:17
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k-20度电缆导体交流电阻与直流电阻之比
anan204 --- 2008-08-21 14:29:53
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不太明白什么意思
ma800722 --- 2008-08-21 16:53:19
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小学生 --- 2008-08-22 09:19:19
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电缆导体在工频下的交流电电阻与直流电阻之比