Ship stabilizer e fole: o que têm em comum

1. Passo 1. Ship stabilizer — faz parte de — Ocean liner. Stabilizers.
2. Passo 2. Ocean liner — evoluiu de — Screw steamship. A large steamship.
3. Passo 3. Screw steamship — tem como parte — Watt steam engine. A steam engine or turbine.
4. Passo 4. Watt steam engine — evoluiu de — Piston pump. The first steam engines (Newcomen’s) pumped water out of mines by driving pumps.
5. Passo 5. Piston pump — tem como parte — Válvula de retenção. Check valves direct the flow.
6. Passo 6. Válvula de retenção — faz parte de — Fole. An air intake valve.

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