作为消费者，你不需要懂的这些东西。但是对与声频设计师和声学家来说，它们却相当重要。
These subsets are not necessary for consumers to understand, but they are important to design engineers and acousticians.
作为消费者，你不需要懂的这些东西。但是对与声频设计师和声学家来说，它们却相当重要。
These subsets are not necessary for consumers to understand, but they are important to design engineers and acousticians.
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