Cylinder and dewar flask: what they have in common

1. Step 1. Cylinder — is part of — Diesel engine. Cylinders.
2. Step 2. Diesel engine — is part of — Tanker. A diesel.
3. Step 3. Tanker — includes — LNG carrier. A tanker.
4. Step 4. LNG carrier — has part — Dewar flask. Insulated tanks.

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