n. 口径测定, 刻度, 校准

[化] 校准

[医] 校准

[经] 测量

[ noun ]
the act of checking or adjusting (by comparison with a standard) the accuracy of a measuring instrument
<noun.act>
the thermometer needed calibration

Calibration \Cal`ibra"*tion\, n.
The process of estimating the caliber a tube, as of a
thermometer tube, in order to graduate it to a scale of
degrees; also, more generally, the determination of the true
value of the spaces in any graduated instrument.