Burette and radio: what they have in common

1. Step 1. Burette — has part — Valve. A crane.
2. Step 2. Valve — is part of — Valve trumpet. Valves.
3. Step 3. Valve trumpet — uses — Resonance. Resonance of the tube.
4. Step 4. Resonance — is used in — Oscillator. A resonant circuit.
5. Step 5. Oscillator — is part of — Radio. A carrier frequency oscillator.

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