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六类水晶头接法双层问题
更新时间: 2020-08-19 00:00:00  

两种做法,一种是交叉线,一种是平行线。

交叉线的做法:一头采用568A标准,一头采用568B标准。

平行线的做法:两头同为568A标准或568B标准。

关键词: 水晶 双层 问题

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