"🔩🏗️": This emoji combination represents the concept of construction and engineering. It signifies the use of screws (🔩) and building or assembling structures (🏗️). "Truss struct": A truss structure refers to a framework composed of interconnected triangular units, typically made of beams or bars. It is designed to provide stability, strength, and support in various applications, such as bridges, roofs, and towers.