Saturn V and hydraulic press: what they have in common

1. Step 1. Saturn V — uses — Lunar module. It launched the lunar module.
2. Step 2. Lunar module — has part — Landing gear. Legs.
3. Step 3. Landing gear — includes — Retractable landing gear. Landing gear.
4. Step 4. Retractable landing gear — has part — Hydraulic cylinder. Retraction cylinders.
5. Step 5. Hydraulic cylinder — is part of — Hydraulic press. Two cylinders of different diameters.

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