方法：以喉声图仪采集、分析146例正常老年人嗓音声样。
Method :To collect and analyze 146 voice samples of the normal aged with sonogram.
目的：综合分析正常老年人嗓音变化的特征。方法：以喉声图仪采集、分析146例正常老年人嗓音声样。
Objective: to measure the voice samples of the normal aged in order to systemically study the features of the voice changes.
目的：综合分析正常老年人嗓音变化的特征。方法：以喉声图仪采集、分析146例正常老年人嗓音声样。
Objective: to measure the voice samples of the normal aged in order to systemically study the features of the voice changes.
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