| 内容提要(EN): |
Acoustics;Definitions;Electrical engineering;Electroacoustics;Electromagnetic compatibility;EMC;Features;Field strength (electric);Frequencies;Frequency ranges;Hearing aids;High frequencies;Immunity;Interference rejections;Limits (mathematics);Measuring techniques;Measuring uncertainty;Mobile radio systems;Noise sources;Performance;Telephones;Test signals;Testing;Transmission characteristics |