Rear cargo ramp and electrical grid: what they have in common

1. Step 1. Rear cargo ramp — is part of — Cargo aircraft. A lowering rear ramp for loading vehicles.
2. Step 2. Cargo aircraft — has part — Turboprop. Turboprop engines for short runways.
3. Step 3. Turboprop — has part — Reduction gear. A propeller gearbox.
4. Step 4. Reduction gear — is part of — Electric car. A single-speed reduction gear usually replaces the gearbox.
5. Step 5. Electric car — uses — Charging station. It charges at charging stations.
6. Step 6. Charging station — uses — Electrical grid. Powered from the grid.

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