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| English thesaurus | |||
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| PAR | |||
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Photon : 259 phrases in 26 subjects |
| Analytical chemistry | 2 |
| Astronomy | 3 |
| Biology | 2 |
| Chemistry | 2 |
| Communications | 2 |
| Dosimetry | 7 |
| Earth sciences | 2 |
| Electronics | 6 |
| General | 2 |
| Health care | 4 |
| High energy physics | 42 |
| Lighting other than cinema | 8 |
| Measuring instruments | 1 |
| Mechanic engineering | 1 |
| Medical | 6 |
| Medical appliances | 4 |
| Microelectronics | 3 |
| Microsoft | 1 |
| Natural sciences | 1 |
| Nuclear physics | 40 |
| Optics branch of physics | 18 |
| Physical sciences | 3 |
| Physics | 39 |
| Radiation | 42 |
| Radiography | 1 |
| Technology | 17 |