 |
| |||
| helical gear-wheel; spiral gear-wheel | |||
| gear wheel with curved teeth; gear with curved teeth | |||
| roue à denture spirale: 5 phrases in 2 subjects |
| Gear train | 4 |
| Mechanic engineering | 1 |
|
| |||
| helical gear-wheel; spiral gear-wheel | |||
| gear wheel with curved teeth; gear with curved teeth | |||
| roue à denture spirale: 5 phrases in 2 subjects |
| Gear train | 4 |
| Mechanic engineering | 1 |