Pneumatic tube terminal and turbine: what they have in common

1. Step 1. Pneumatic tube terminal — is part of — Pneumatic tube. A lock for receiving and sending capsules.
2. Step 2. Pneumatic tube — uses — Compressed air. Air pressure.
3. Step 3. Compressed air — is used in — Dental drill. Compressed air.
4. Step 4. Dental drill — has part — Turbine. An air-driven turbine handpiece.

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