
Electroacoustics - Octave-band And Fractional-octave-band Filters - Part 1: Specifications (iec 29/748/cdv:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Electroacoustics - Octave-band And Fractional-octave-band Filters - Part 1: Specifications (iec 29/748/cdv:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻