目的研究腭裂术后不同语音清晰度患者元音共振峰模式的差异，以及元音第三共振峰同腭咽闭合不全率的关系。
AIM to study the spectrum features of formant pattern of vowel and the relationship between RVPI and F3 in postoperative patients.
结果：改良的联合术式设计可明显提高腭咽闭合不全患者的腭咽闭合率。
Results: the improved combined operation design can significantly improve the closure rate of the patients with VPI.
结果：改良的联合术式设计可明显提高腭咽闭合不全患者的腭咽闭合率。
Results: the improved combined operation design can significantly improve the closure rate of the patients with VPI.
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