【经】 group standard
sort; class; classify; assort; divide; label; staple; system
【计】 categories; categorization; category
【化】 classification
【医】 classifieation; grouping; systematization; systematize; typing
【经】 classification; classifying; group; sort
criteria; level; mark; measure; normal; par; rule; standard; criterion
【计】 etalon; normal; STD
【化】 standards
【医】 norm; normo-; rubric; standard
【经】 denominator; norm; standard