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.
Shulan City, which belongs to Jilin City, Jilin Province, is located in the north-central part of Jilin Province, with geographical coordinates of 43 °51 latitude 44 °38 'north latitude and 127 °45' east longitude. Jilin Province under the jurisdiction of county-level cities, entrusted to Jilin City escrow. It is bordered by Longtan District and Jiaohe City of Jilin City in the south, Jiutai City across the Songhua River in the west, and Wuchang City in Heilongjiang Province in the northeast. The city is 105km long from east to west and 77km wide from north to south, with a total area of 4557.05 square kilometers. With a total population of 656000 (2012), it has jurisdiction over 5 streets, 10 towns, 5 townships and 1 provincial economic development zone. In 2012, the gross domestic product of Shulan City reached 18.55 billion yuan. The first batch of national experimental and demonstration areas for sustainable agricultural development. In September 2018, in the sixteenth session