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覆蓋率、導(dǎo)體電阻、配模、電阻溫度修正系數(shù)、銅線用料、特性阻抗、電線的額定電流、線規(guī)表 (多支)、特性阻抗......
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CT18052410053:
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來(lái)學(xué)習(xí)一下
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