发布时间:2025-02-02 15:09:33
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
cad中应急照明安全指示出口消防器材应急疏散指示标志这四个有朋友知道怎么画么
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