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.
Suibin County, which belongs to Hegang City, Heilongjiang Province, is located on the border and is close to the Songhua River, which means "appeasement" and "Binjiang". Suibin County is bounded by the Heilongjiang main waterway in the north and Russia across the river, the Songhua River is connected with Tongjiang City and Fujin City in the east and south, and Luobei County is bordered in the west. By the end of 2017, Suibin County had jurisdiction over 3 towns, 6 townships, 2 forest farms, 3 farms, 1 storage farm and 1 improved seed farm, with a total area of 3344 square kilometers and a total registered population of 176783. Suibin County is located in the border, sparsely populated, is a national ecological demonstration area, there are 55490 hectares of Liangjiang Wetland Nature Reserve at the provincial level. Suibin Waterway Port is a first-class national port approved by the State Council in January 1995 to carry out international passenger and cargo transport. It was officially opened in September of the same year.