
Electric And Optical Fibre Cables - Test Methods For Non-metallic Materials - Part 301: Electrical Tests - Measurement Of The Permittivity At 23 Degree C Of Filling Compounds
出版:Verband Deutscher Elektrotechniker

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Electric And Optical Fibre Cables - Test Methods For Non-metallic Materials - Part 301: Electrical Tests - Measurement Of The Permittivity At 23 Degree C Of Filling Compounds
出版:Verband Deutscher Elektrotechniker
专家解读视频