Motion research: according to the principle of motion competition, to find unreasonable redundant and repetitive parts and improve them, and to design a new and reasonable one-operation as the structure of the operation procedure. 1 utilization of the human body, 2 workplace layout and improvement of working conditions, 3 tools and tools for the operation. 2 workplace layout and improvement of working conditions, 3 workplace layout and improvement of working conditions, 3 tools and tools for the operation. Improvement of working conditions3Tools and equipment design