API gravity

countable uncountable

(oil industry) A specific gravity scale measuring the relative density of various petroleum liquids, expressed in degrees.

Japanese Meaning

石油業界で使用される、石油液体の相対密度を度数で示すための比重尺度。

The refinery routinely measures API gravity to determine the market grade of crude oil.

製油所は原油の市場等級を決めるために、米国石油協会が定める比重を定期的に測定します。

Sense（1）

(oil industry) A specific gravity scale measuring the relative density of various petroleum liquids, expressed in degrees.

API gravities

（ plural ）