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| média aritmética; média | |||
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| ventre | |||
| وسط: 46 phrases in 16 subjects |
| Antennas and waveguides | 6 |
| Electric motors | 3 |
| Electronics | 1 |
| Environment | 2 |
| International Monetary Fund | 7 |
| Isolation | 1 |
| Lighting other than cinema | 3 |
| Magnetics | 2 |
| Mathematics | 3 |
| Physics | 2 |
| Power lines | 2 |
| Radio | 4 |
| Sound recording | 3 |
| Statistics | 4 |
| Telegraphy | 1 |
| Thermal Energy | 2 |