acorn tube acorn valve acoustextile acoustic acoustic absorber acoustic absorption acoustic-absorption coefficient acoustic-absorption factor acoustic absorption unit acoustical acoustical absorbent acoustical adhesive acoustical admittance acoustical altimeter acoustic alarms acoustical attenuation constant acoustical compliance acoustical constant acoustical damper acoustical doppler effect |
acorn tube миниатюрна електронна лампа тип "желъд" Търсената дума е намерена |