Thirty Years of Acoustics in China, Open PDF Document Details Document Type Technical Report Publication Date Feb 04, 1981 Accession Number ADA098435 Entities People Ma Dayou Organizations National Air and Space Intelligence Center Tags Communities of Interest Biomedical Ground and Sea Platforms Weapons Technologies DTIC Thesaurus Topics Acoustic Equipment Acoustic Insulation Acoustic Materials Acoustic Propagation Acoustic Properties Acoustic Waves Acoustics Architectural Acoustics Detection Environmental Protection Frequency Language Materials Measurement Microphones Piezoelectric Crystals Transducers