Subjects in conditioning group were exposed to an octave band of noise(OBN) centered at 0.5kHz,95dB SPL,6 h per day for 10 days.

 
  • 适应组先在实验室内暴露于强度为95 dB SPL(声压级);中心频率为0.;5 kHz的一个倍频程噪声;连续10 d;每天6 h;
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