The unit generates noise at all frequencies across the human hearing range.
它能产生所有频率的声音，覆盖了整个人类的听力范围。
The frequency response of human hearing system can be classified two categories: "static" and "dynamic".
本文认为人类听觉系统的频响有“静态”和“动态”之分。
The frequency response of human hearing system can be classified two categories: "static" and "dynamic".
本文认为人类听觉系统的频响有“静态”和“动态”之分。
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