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文章通过介绍阻抗匹配原则来分析和研究扩音机与扬声器的配接方法和配接要点,掌握简便正确的使用方法,以便运用好扩音设备,使广播宣传发挥应有的作用。
This paper introduces the principle of impedance matching to analyze and study the matching method and matching points of megaphone and loudspeaker, and to master the simple and correct method of using so that the public address system can play a proper role.