求翻译：有线双工对讲机主要应用于对音频信号的功率放大，本文介绍了具有弱信号放大能力的有线双工对讲机的基本原理、内容和实现过程。整个电路主要由稳压直流电源、声电转换、放大器等部分组成。稳压直流电源主要为前置放大器、功率放大器提供稳定的直流电源；前置放大器主要是电压的放大；功率放大器实现电压、电流的放大；设计电路结构简洁、实用，充分利用到了集成运放的优良性能。是什么意思？

Wired duplex intercom is mainly used in the power of the audio signal amplification, this paper introduces the basic principles of the wired duplex walkie-talkie with a weak signal amplification, content and implementation process. The entire circuit from the regulated DC power supply, acoustic-elec

Wired-duplex intercom to the main audio signal applied to the power amplification, this article describes the capacity has a weak signal amplification of the wired duplex walkie-talkie, the basic content and process. The entire circuit is mainly regulated by DC power source, sound power conversion,

Wire duplex radio power amplifier is mainly used for audio signal, this article describes with a weak cable signal amplification ability basic principles, contents and implementation of duplex radios. The entire circuit, mainly by regulated DC power supply, switching, amplifiers and other components