家用高保真音响设备和系统。性能检测和说明的方法。第1部分：总则。
Household high-fidelity audio equipment and systems. Methods of measuring and specifying the performance. Part 1: general.
家用高保真音响设备和系统。性能检测和说明的方法。第1部分：总则。
Household high-fidelity audio equipment and systems. Methods of measuring and specifying the performance. Part 1: general.
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