Ocean liner e saw: o que têm em comum
- Passo 1. Ocean liner — tem como parte — Turbine. Large liners run on steam turbines.
- Passo 2. Turbine — evoluiu de — Water wheel. The water turbine evolved from the water wheel.
- Passo 3. Water wheel — faz parte de — Sawmill. Early sawmills were driven by water wheels.
- Passo 4. Sawmill — utiliza — Saw. The cutting tool is a saw.