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1.The push-pull amplifier is used to amplify signals between two devices.
推挽放大器用于在两个设备之间放大信号。
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2.In audio engineering, push-pull amplifiers are commonly used in headphones and speakers.
在音频工程中，推挽放大器常用于耳机和扬声器。
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3. The push-pull amplifier was developed to improve the efficiency of wireless communication systems.
推挽放大器的发明是为了提高无线通信系统的效率。