
光纖 - 第2部分:產品規范 - 總則(IEC 60793-2-2019)Optical fibres - Part 2: Product specifications - General (IEC 60793-2:2019)
出版:National Standards Authority of Ireland

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光纖 - 第2部分:產品規范 - 總則(IEC 60793-2-2019)Optical fibres - Part 2: Product specifications - General (IEC 60793-2:2019)
出版:National Standards Authority of Ireland
專家解讀視頻