القرص طاحونة ميسيتش. Category:Acoustics Wikimedia Commons. English: Acoustics is the study of waves, in particular sound, which are mechanical vibrations in gases, liquids and solids. acoustics science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound
القرص طاحونة ميسيتش. Category:Acoustics Wikimedia Commons. English: Acoustics is the study of waves, in particular sound, which are mechanical vibrations in gases, liquids and solids. acoustics science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound
