名词
中文翻译：直接耦合放大器
同义词：
['直接耦合放大器，直接耦合功率放大器']
例句：
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1.The direct coupled amplifier is used in the amplification of audio signals.
直接耦合放大器用于音频信号的放大。
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2. The direct coupled amplifier was designed to improve the quality of audio signals.
直接耦合放大器被设计来提高音频信号的质量。
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3. The direct coupled amplifier has been widely used in various applications, such as audio and video equipment.
直接耦合放大器在各种应用中得到了广泛应用，如音频和视频设备。