The audiogram of pure tone,of noise and of distractive energy are obtained. The measuring device is composed of simple apparatus in lab.
英
美
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利用實(shí)驗室現有的簡(jiǎn)單設備組成實(shí)驗裝置,測定了正常的聽(tīng)閾曲線(xiàn)、有噪聲干擾時(shí)的聽(tīng)閾曲線(xiàn)、分散注意力時(shí)的聽(tīng)閾曲線(xiàn)。
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国内精品美女A∨在线播放xuan