Last Updated：2025/11/21

(engineering) A line which serves as a reference or base for the measurement of other quantities.

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datum line

Source Word

datum line

Noun

(engineering) A line which serves as a reference or base for the measurement of other quantities.

Japanese Meaning

基準となる線。計測の際に他の量を測定するための参照となる線。

The surveyor used the datum line as the base for all elevation measurements on the site.

測量士は現場の全ての標高測定の基準として基準線を使用した。

Sense（1）

(engineering) A line which serves as a reference or base for the measurement of other quantities.

datum lines

（ plural ）