Heat pipe and router: what they have in common

1. Step 1. Heat pipe — is part of — Laptop. Heat pipes.
2. Step 2. Laptop — has part — Liquid-crystal display. An LCD screen.
3. Step 3. Liquid-crystal display — is part of — Car navigator. A screen.
4. Step 4. Car navigator — has part — System on a chip (SoC). An SoC does the computing.
5. Step 5. System on a chip (SoC) — is part of — Router. A packet-processing processor.

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