In recent years, domestic instrument technology research and product development have achieved results, and some high-end instruments have been localized. However, due to the weak R & D foundation of instruments, the relative lack of technology accumulation, the weak ability of independent R & D of high-end new products, the "hollowing" of key components and other reasons, the problem of high dependence on the import of high-end instruments has not been effectively resolved, and there is still a certain gap between the R & D and manufacturing of domestic instruments and the international advanced level.