Vapour-compression cycle and computer: what they have in common

1. Step 1. Vapour-compression cycle — is used in — Air conditioner. The vapour-compression cycle.
2. Step 2. Air conditioner — is part of — Data centre. Cooling.
3. Step 3. Data centre — has part — Server. Thousands of servers.
4. Step 4. Server — is a kind of — Computer. A computer.

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