Andy, a writer/home appliance evaluatorLooking at the development history of the entire household appliance industry, one can find that all technological research and product design are people-oriented. Taking refrigerators as an example, from early two door refrigerators to three door refrigerators with variable temperature zones, and then to opposite door refrigerators,Every iteration not only updates the capacity, but also updates the technologyFor example, from direct cooling to air cooling, from single cycle to double cycle, from no pure taste to pure taste, negative ionsAll of this evolution is based on "humanization"...