生せい石せっ灰かい

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Meanings

1

quicklime; calcium oxide

Technical term for calcium oxide (CaO), used in construction, agriculture, and chemical processes.

Quicklime reacts with water and generates heat.

農のう業ぎょうでは土ど壌じょう改かい良りょうに生せい石せっ灰かいを使つかうことがある。

In agriculture, quicklime is sometimes used for soil improvement.