未み精せい製せい

noun which may take the genitive case particle 'no'

unrefined; crude; raw

Describes materials or substances that have not been processed or purified, such as oil, sugar, or chemicals. Often used in technical or industrial contexts.

See also: 精製

• 未み精せい製せいの砂さ糖とうはミネラルが豊ほう富ふだ。

  Unrefined sugar is rich in minerals.

• この工こう場じょうでは未み精せい製せいの原げん油ゆを輸ゆ入にゅうしている。

  This factory imports crude oil.