감쇠,damping 를 분리?
Sub:
소리,sound 음향학,acoustics
acoustic_attenuation =,acoustic_attenuation . acoustic_attenuation
{
https://en.wikipedia.org/wiki/Acoustic_attenuation
소리,sound 음향학,acoustics
acoustic_attenuation =,acoustic_attenuation . acoustic_attenuation
{
https://en.wikipedia.org/wiki/Acoustic_attenuation
}