Drip irrigation and screw press: what they have in common

1. Step 1. Drip irrigation — is a kind of — Irrigation. A kind of irrigation.
2. Step 2. Irrigation — uses — Archimedes’ screw. The Archimedes’ screw lifted water for irrigation.
3. Step 3. Archimedes’ screw — uses — Screw. A rotating helical surface lifts water.
4. Step 4. Screw — is used in — Screw press. The force is produced by turning a screw.

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