【经】 mean-per-unit estimation
estimate; account; appraise; compute; figure; gauge; reckon
【化】 estimation
【经】 assess; assessment; computation; estimate; estimate price; estimates
gauge; reckon; reckoning; take the gauge of
each; every; often; per
【经】 per
a unit; letter
【计】 AV; average value; AVG; mean value
【经】 average value; mean; mean value