専せん門もん技ぎ術じゅつ

noun

expertise; specialized skill; technical know-how

Refers to professional-level knowledge, techniques, or skills in a specific field.

• 彼かれはITの専せん門もん技ぎ術じゅつを持もっている。

  He has expertise in IT.

• この仕し事ごとには高こう度どな専せん門もん技ぎ術じゅつが必ひつ要ようだ。

  This job requires advanced specialized skills.