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.
Beitun is located at the southern foot of Altai Mountain, north of Junggar Basin, south bank of Ertix River, at the foot of Deren Mountain, bordering Kazakhstan in the west, Russia in the north and Mongolia in the east. It was founded in 1958 and was personally selected and named by Zhang Zhonghan, the former political commissar of the bingtuan, meaning that the bingtuan reclaimed the northernmost land, and it is another star of military reclamation in New China. It is the county-level city directly under the jurisdiction of the Xinjiang Uygur Autonomous region and the seat of the 10th Division of the Xinjiang production and Construction Corps. It implements the "integration of division and city" management mode with the 10th Division of the Xinjiang production and Construction Corps, which is managed by the Xinjiang production and Construction Corps. It is about 580 kilometers away from Urumqi and 60 kilometers away from Altay Airport. Railway, high-grade highway and aviation are the main lines of transportation, and the national and provincial highways are the auxiliary transport framework. 216 National Highway, 318 Provincial Highway, 319