... pure tonecaudiometen 纯音听力计 pure tone frequency 纯音频率 pure weotersystem 纯水蒸溜系统 ...
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Pure tone audiometry: Slight sensorineural hearing loss mainly at the lower frequency may be detected during or soon after attack. It may be recovered or lightened after the attack.
纯音测听：发作时或发作后不久，可检测到轻度的、以低频听力损失为主的感觉神经性耳聋，发作后恢复正常或减轻。
That is, it generates one pure tone or frequency at a time.
它可以每次产生一个纯音或者频率。
Methods 50 patients received standard pure - tone and extended high frequency audiometry for hearing measurement.
方法对50例压力性鼓膜穿孔患者的常频和扩展高频测听的听阈结果进行分析。
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