Application analysis: Step 1 Select the research object. Record all the facts by direct observation. Analyze the observed facts and find out the improvement scheme. Through analysis, a new set of economical and practical methods is put forward. The new method has been put into practice. Including five analysis tools, 1 operation program, figure 2 flow chart, figure 3 line chart, figure 4 man-machine program, figure 5 multi-operation program and figure 6 operator program chart.

Action research: according to the principle of action competition, find out the unreasonable redundant parts and improve them, and design a new reasonable operation program with operation structure. 1 Utilization of human body 2 Improvement of workplace layout and working conditions 3 Design of related tools and equipment.