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ضوئي : 75 phrases in 11 subjects |
| Antennas and waveguides | 15 |
| Electric traction | 1 |
| Electronics | 5 |
| Environment | 8 |
| Lighting other than cinema | 25 |
| Magnetics | 1 |
| Microsoft | 4 |
| Radio | 6 |
| Radiology | 1 |
| Semiconductors | 3 |
| Vacuum tubes | 6 |
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