File und steam locomotive: was sie gemeinsam haben

1. Schritt 1. File — nutzt — Friction. Material is removed by the friction of the teeth.
2. Schritt 2. Friction — wird verwendet in — Flanged wheel. The wheel rolls along the rail.
3. Schritt 3. Flanged wheel — ist Teil von — Steam locomotive. Flanged wheels keep it on the track.

Evothings öffnen