Methods Video-stroboscopy was used to reveal the laryngeal cavity and dynamic changes of the vocal fold, and sound spectrograph was used to examine audio frequency, pitch and width.
方法用
镜显示患者腔全貌和声带的动态变
，用声门分析仪检测并记录患者发声的
、
调和域。
,Methods Video-stroboscopy was used to reveal the laryngeal cavity and dynamic changes of the vocal fold, and sound spectrograph was used to examine audio frequency, pitch and width.
方法用镜显示患者腔全貌和声带的动态变，用声门分析仪检测并记录患者发声的、调和域。
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