作さ業ぎょう所しょ

noun

field office; worksite office

Typically refers to a temporary on-site office set up by a construction company or similar project-based operation.

• 工こう事じ現げん場ばの作さ業ぎょう所しょで打うち合あわせをした。

  We had a meeting at the field office on the construction site.