【电】 standard facility
criteria; level; mark; measure; normal; par; rule; standard; criterion
【计】 etalon; normal; STD
【化】 standards
【医】 norm; normo-; rubric; standard
【经】 denominator; norm; standard
skill; artifice; mechanics; sleight; workmanship
【计】 exhausting; TIP
【化】 technic; technical; technique; workmanship