“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Engineering67Agricultural and Biological Sciences13Business, Management and Accounting8Science: Physics: Electricity and magnetism: Electricity1Technology: Mechanical engineering and machinery: Control engineering systems. Automatic machinery (General)1