technical works; engineering works
Refers to construction or engineering projects that require specialized technical skill, such as bridges, tunnels, or large-scale infrastructure.
This company has undertaken many large-scale technical works.
Bidding on technical works requires advanced expertise.
土木工事 is a broader term for civil engineering works in general, while 技術同士 emphasizes the technical or specialized nature of the construction.
Formed from 技術, “technology or technique,” and 同士, which links people or things belonging to the same class.