75 Technical innovation: In economic development theory, it refers to the first application of new technologies and inventions in production. It is the establishment of a new production function or supply function in the production system, which leads to a new combination of production factors and production conditions. Science emphasizes that technological innovation is non-exclusive, uncertain, marketable, and systematic. According to the above definitions, Which of the following behaviors belong to technological innovation in the economics category:. ['The United States has extremely advanced and advanced space technology, and the space shuttle can fly freely in space.', 'A Japanese food manufacturer introduced advanced foreign production technology to improve product quality.', 'After continuous exploration, Haier Group produces household appliances that meet the needs of various types of people, and has achieved great market returns.', 'Microsoft technology can find the contents of any computer using Microsoft.']