一问题的提出郓城位于山东省的西南部,全县方言属于官话方言中原官话区的兖菏片。郓城话的撮口呼韵母情况比较特殊,介音的实际音值并不是由舌面前圆唇元音[y]充任的单个介音,而是由[i]、[u]复合而成的双介音[iu-]。[iu-]类双介音韵母(包括复韵母与鼻韵母),在方言音系整理过程中 One issue put Tancheng is located in the southwest of Shandong Province, the county dialect belongs to the Mandarin dialect Mandarin area of ​​Yanzhou tablets. Tancheng dialect portending vocalist situation is rather special, the actual tone value is not mediated by the front of the tongue vowel [y] as a single voice, but by [i], [u] Dual media [iu-]. [iu-] class double vowel consonants (including complex vowels and nasal vowels), dialect phonology finishing process