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Public broadcasting system belongs to a branch of sound reinforcement sound system, and sound reinforcement sound system, also known as professional sound system, involves the fringe science of the three disciplines of electroacoustics, sound construction and music.
Public broadcasts are broadcasts that serve the public to a limited (but would be quite large) scope. Under normal circumstances, public broadcast signals are transmitted through broadcast lines located in broadcast service areas, and are usually a one-way (downstream) cable broadcast.
1, the normal working temperature of broadcasting equipment should be 18 degrees C ~ 45 C.
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