Warp beam e steam locomotive: o que têm em comum
- Passo 1. Warp beam — faz parte de — Loom. A beam with the warp threads.
- Passo 2. Loom — evoluiu para — Power loom. A mechanized loom.
- Passo 3. Power loom — tem como parte — Watt steam engine. Driven by a steam engine.
- Passo 4. Watt steam engine — faz parte de — Steam locomotive. A steam locomotive is driven by a steam engine.