发布时间:2025-01-22 22:53:01
可以,强弱电布线出现相互交叉时,在交叉处要用锡箔纸将二者相互独立缠裹,减少信号干扰,出自我们的施工要点,是施工标中
网上说镀锌的铁水管含铅要注意却没见一个因此原因而铅中毒的例子有
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