石せき油ゆ精せい製せい

noun

oil refining; petroleum refining

Technical and industrial term for the process of refining crude oil into usable products.

• 石せき油ゆ精せい製せいはこの地ち域いきの主しゅ要よう産さん業ぎょうです。

  Oil refining is the main industry in this region.

• 新あたらしい石せき油ゆ精せい製せい技ぎ術じゅつが開かい発はつされた。

  A new oil refining technology has been developed.