治疗前和治疗后每3天进行一次纯音听力测试。
The hearing threshold of all the patients were measured before and after treatment every 3 days.
我们医院目前用的听力计主要做患者的纯音听阅测试，其它功能很少用。
The audiometer that our hospital uses currently is mainly the sufferer's pure sound to listen to read a test, other functions seldom use.
方法：测试在不同的噪声水平时听力正常的11名受试者感知听阈附近纯音的能力。
Methods: 11 subjects abilities to detect near threshold pure tone levels were measured in different noise free from hearing disorder.
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