How to Clean an Electric Valve for Air Horns
도구
해당 기기를 고치는데 사용하는 일반 도구들 입니다. 매 단계에 모든 도구를 사용하지는 않습니다.
AIR HORNS
An air horn is a pneumatic device designed to create an extremely loud noise for signalling purposes. It usually consists of a source which produces compressed air, which passes into a horn through a reed or diaphragm. The stream of air causes the reed or diaphragm to vibrate, creating sound waves, and the horn amplifies the sound so it is louder.