14/30314209 DC被替代
Bs En 61189-2-719 Ed.1 - Test Methods For Electrical Materials, Printed Board And Other Interconnection Structures And Assemblies - Part 2-719: Test Methods For Printed Board And Assembly Materials - Relative Permittivity And Loss Tangent (500 Mhz To 10 Ghz)
出版：British Standards Institution
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