Which of the eight evolutionary rules is embodied by hand-operated meat grinder instead of kitchen knife to chop meat stuffing?

Chopping meat stuffing with a hand-operated meat grinder instead of a kitchen knife embodies the dynamic evolution law among the eight evolutionary laws. According to relevant public information, the noun interpretation of dynamic evolution law is an innovative thinking method and problem analysis method. According to the evolution law of technical system, on the basis of a large number of patent analysis, TRIZ theory summarizes and refines eight basic evolution laws. Using these evolution rules, we can analyze and confirm the current technical state of products, predict the future development trend and develop competitive new products.