Hydraulic press and truck: what they have in common

1. Step 1. Hydraulic press — has part — Hydraulic cylinder. Two cylinders of different diameters.
2. Step 2. Hydraulic cylinder — is part of — Excavator. Hydraulic cylinders move the boom and the bucket.
3. Step 3. Excavator — has part — Diesel engine. The drive is a diesel.
4. Step 4. Diesel engine — is part of — Truck. A diesel engine.

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