Smart city is the full application of new generation information technology in various industries in cities, achieving deep integration of informatization, industrialization and urbanization, and alleviating the shortage of medical, educational, transportation resources and environmental problems caused by excessive population concentration. It is reported that the urbanization rate in China was 60.6% in 2019. As the most populous country, China's urbanization process is inevitable in order to narrow the wealth gap in society.

As is well known, major technological breakthroughs cannot be achieved without the advancement of scientific research instruments. Today, China's science and technology have reached a turning point from tracking to leading. As a multiplier for the development of scientific research, research instruments will undoubtedly become important tools for science and technology competitions in various countries, and even the key to victory. Therefore, major universities and institutions are increasing their investment in scientific research instruments and actively purchasing high-level equipment to enhance their research capabilities.

Recently, the Guanshanhu District Disease Prevention and Control Center in Guiyang City launched the procurement of laboratory construction instruments. The total budget of the project is 24.574 million yuan, and the announcement shows that 9.13 million yuan will be used to purchase imported instruments. The argumentation opinions not only require GC IC、AAS、ICP-OES、 Large equipment such as fully automatic flow injection analyzers and fluorescence quantitative PCR analyzers are purchased and imported, and even common instruments such as refrigerators, 1% balances, ordinary centrifuges, and water heaters imply that "domestic production is not feasible".