Ponte e turbine: o que têm em comum
- Passo 1. Ponte — inclui — Suspension bridge. A bridge.
- Passo 2. Suspension bridge — é feito de — Wrought iron. The chains of early suspension bridges were made of wrought iron.
- Passo 3. Wrought iron — é material para — Ocean liner. The hull is iron, later steel.
- Passo 4. Ocean liner — tem como parte — Turbine. Large liners run on steam turbines.