PROIECT+UNDE+SONORE.+UNDE+SEISMICE.+APLICATII.

=REFLEXION, BRECHUNG, INTERFERENZ, DIFRAKTION =

= SCHALL/UNDE SONORE =

=ULTRASCHALL/ULTRASUNETE=

= = = SEISMOLOGIE =

= = = PFEIFEN UND SAITEN =

= AKUSTIK =