Sawdust and autoclave: what they have in common

1. Step 1. Sawdust — is material for — Ice house. Thermal insulation of the ice.
2. Step 2. Ice house — uses — Latent heat. Melting ice absorbs heat.
3. Step 3. Latent heat — is used in — Boiler. Evaporation needs latent heat.
4. Step 4. Boiler — is part of — Autoclave. A steam generator.

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