Air intake collar and piston pump: what they have in common

1. Step 1. Air intake collar — is part of — Bunsen burner. It regulates the air intake.
2. Step 2. Bunsen burner — uses — Natural gas. Gas.
3. Step 3. Natural gas — is used in — Thermal power station. Gas.
4. Step 4. Thermal power station — has part — Boiler. Boilers.
5. Step 5. Boiler — is part of — Newcomen engine. Steam from the boiler.
6. Step 6. Newcomen engine — has part — Piston pump. The beam drove a mine pump.

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