Industrial automation and liquid-propellant rocket engine: what they have in common

1. Step 1. Industrial automation — uses — Programmable logic controller. Controllers.
2. Step 2. Programmable logic controller — is part of — Chemical plant. Process control automation.
3. Step 3. Chemical plant — has part — Pipeline. Pipelines between the vessels.
4. Step 4. Pipeline — has part — Centrifugal pump. Pumping stations.
5. Step 5. Centrifugal pump — is part of — Liquid-propellant rocket engine. Turbopumps deliver the propellant.

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