 |
| lighting unit: 8 phrases in 6 subjects |
| Aviation | 1 |
| Construction | 1 |
| Firefighting and fire-control systems | 1 |
| Lighting other than cinema | 3 |
| Technology | 1 |
| Telecommunications | 1 |
|
| lighting unit: 8 phrases in 6 subjects |
| Aviation | 1 |
| Construction | 1 |
| Firefighting and fire-control systems | 1 |
| Lighting other than cinema | 3 |
| Technology | 1 |
| Telecommunications | 1 |