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1. The three-channel amplifier is designed to deliver high-quality sound from the source.
这款三通道放大器旨在从源处提供高质量的声音。
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2. The three-channel amplifier has been upgraded with new features for better performance.
这款三通道放大器已经升级了新功能，以获得更好的性能。
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3.The three-channel amplifier is widely used in home theater systems.
这款三通道放大器在家庭影院系统中得到了广泛应用。