San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Dongxiang Autonomous County is located in the southwest of the central part of Gansu Province and to the east of Linxia Hui Autonomous Prefecture, with an east diameter of 103 °10 and a latitude of 35 °30. Lintao River is adjacent to Dingxi City in the east, Guanghe and Hozheng counties in the south, Daxia River and Linxia City and Linxia County in the west, and Yongjing County to the north. Historically, Dongxiang had no county system and was under the jurisdiction of Hezhou. Dongxiang was liberated on August 22, 1949. In October 1950, in accordance with the policy of regional ethnic autonomy, Dongxiang Autonomous region, equivalent to the county level, was established. In 1955, according to the Constitution of the people's Republic of China, it was officially named Dongxiang Autonomous County. In 2011, the GDP of Dongxiang Autonomous County reached 979 million yuan. September 25, 2018, access to business