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| thermo-ionique | |||
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thermionic : 37 phrases in 12 subjects |
| Antennas and waveguides | 2 |
| Automated equipment | 1 |
| Chemistry | 1 |
| Communications | 1 |
| Earth sciences | 2 |
| Electronics | 18 |
| Environment | 1 |
| General | 4 |
| High energy physics | 2 |
| Medical | 1 |
| Technology | 2 |
| Thermal Energy | 2 |