ITU-T Recommendation K.20 分享
K.20-200307-I分享INTERNATIONALTELECOMMUNICATIONUNION
K.20(07/2003)
TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITU
SERIESK:PROTECTIONAGAINSTINTERFERENCE
Resistibilityoftelecommunicationequipmentinstalledinatelecommunicationscentretoovervoltagesandvercurrents
感谢楼主的贡献啊!
感谢楼主的贡献啊! 谢谢楼主···有k.36或k.12么···小弟也需要哈 谢谢LZ 谢谢楼主···有k.36或k.12么···小弟也需要哈 谢谢楼主···有k.36或k.12么···小弟也需要哈
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