The precedence effect (or "law of first wave front") is our brain's ability to determine the location of sounds amidst conflicting signals based on the direction of the first waves of sound.
优先权效果(或者“第一声波靠前定律”)是我们的大脑基于第一声波位置在相互冲突的各种信号中判定声音位置的能力。
From this knowable, special sound wave is the effect that has disease of recuperate under medical treatment.
由此可知，特殊声波是具有调治疾病的作用。
The decline effect of fabric on sound wave has the chractaristic of frequency alternative.
织物对声波的衰减作用具有频率选择性。
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