声波束

out of sound of amplification of Rtick sound coefficient of sound absorption masking of sound wave length of sound threshold of sound attenuation of sound radiator of sound harmonic series of sound interference fluctuation of sound diffusion of sound sound beam focused sound beam collimated sound beam ultrasonic sound beam continuous sound beam pulsed sound beam sound of Korotkoff linear source of sound Newtonian speed of sound rejection of accompanying sound coefficient of sound damping