Stack of conical discs e railway track: o que têm em comum

1. Passo 1. Stack of conical discs — faz parte de — Cream separator. A stack of conical discs speeds up separation.
2. Passo 2. Cream separator — utiliza — Força centrífuga. Separation by density.
3. Passo 3. Força centrífuga — é utilizado em — Regulador centrífugo. The weights spread apart as the speed rises.
4. Passo 4. Regulador centrífugo — faz parte de — Watt steam engine. Watt used a centrifugal governor to keep the speed steady.
5. Passo 5. Watt steam engine — faz parte de — Steam locomotive. A steam locomotive is driven by a steam engine.
6. Passo 6. Steam locomotive — utiliza — Railway track. It runs on rails.

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