“sound-reinforcement system”的概念、定义、翻译、参考文献-科学参考

单词	sound-reinforcement system
释义	sound-reinforcement system [`sau̇nd ´rē·in`fȯrs·mǝnt ´sis·tǝm] ^{ENGINEERING ACOUSTICS} An electronic means for augmenting the sound output of a speaker, singer, or musical instrument in cases where it is either too weak to be heard above the general noise or too reverberant; basic elements of such a system are microphones, amplifiers, volume controls, and loudspeakers. Also known as public address system.
随便看	carrier density carrier detect carrier frequency carrier gas carrier isolating choke coil carrier leak carrier level carrier line carrier loading carrier mobility carrier molecule carrier noise carrier pipe carrier power output rating carrier repeater carrier rig carrier rocket carrier sense multiple access with collision detection carrier shift carrier signaling carrier suppression carrier swing carrier system carrier telegraphy carrier telephony

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