[金属复合线] 铜包铝衰减公式
P:2007-05-15 16:01:36
1
请问哪位大虾有铜包铝电缆的衰减计算公式,20℃
导线:0.512/0.905
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P:2007-05-15 16:06:53
2
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3
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4
晓得喽。
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8