主しゅ要よう工こう業ぎょう

noun

key industries; major industries

Refers to industries that are central to a country's or region's economy, such as manufacturing, energy, or technology.

• 自じ動どう車しゃ産さん業ぎょうは日本にほんの主しゅ要よう工こう業ぎょうの一ひとつです。

  The automobile industry is one of Japan's key industries.