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.
Maiji District, which belongs to Tianshui City, Gansu Province, is the municipal district of Tianshui City. It is located in the east of Tianshui city. It is located between longitude 105 °25 °East and latitude 34 °06 °48'N, 123km from east to west, 50km from north to south and less than 5km from north to south, with a total area of 3480 square kilometers. the wheat accumulation area spans the two major basins of the Yellow River and the Yangtze River. Wheat accumulation belongs to the continental semi-humid monsoon climate, no severe cold in winter, no heat in summer, mild climate, four distinct seasons, sufficient sunshine and moderate precipitation. As of 2018, Maiji District has jurisdiction over 17 towns, 3 streets, one economic development zone, two high-tech zones and three industrial zones. The district government is stationed on the road north street. By the end of 2018, the total resident population of Maiji District was 650000. The name of Maiji area