石せき油ゆ化か学がく

noun

petrochemistry

The branch of chemistry dealing with petroleum and natural gas, and their derivatives.

• 石せき油ゆ化か学がくは現げん代だいの産さん業ぎょうに欠かかせない分ぶん野やだ。

  Petrochemistry is an indispensable field for modern industry.