基金supported by Korean Studies Foundation Research through the Ministry of Education of the Republic of Korea and Korean Studies Promotion Service of the Academy of Korean Studies (AKS-2018-KFR-1250001)the phased achievement of the major project of Gansu province's philosophy and social science planning in 2019,"A Phonetic Study of Chinese Dialect in Gansu Section of Jing River Basin"(project number:19ZD003)