 |
| |||
| هوائى حلزونى | |||
| |||
| اللولب | |||
|
helice : 15 phrases in 9 subjects |
| Agriculture | 2 |
| Electric traction | 1 |
| Electricity generation | 1 |
| Genetics | 1 |
| Power lines | 1 |
| Technology | 6 |
| Telegraphy | 1 |
| Vacuum tubes | 1 |
| Water resources | 1 |
|
| |||
| هوائى حلزونى | |||
| |||
| اللولب | |||
|
helice : 15 phrases in 9 subjects |
| Agriculture | 2 |
| Electric traction | 1 |
| Electricity generation | 1 |
| Genetics | 1 |
| Power lines | 1 |
| Technology | 6 |
| Telegraphy | 1 |
| Vacuum tubes | 1 |
| Water resources | 1 |