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isotopes : 28 phrases in 11 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 1 |
| Chemistry | 2 |
| Earth sciences | 1 |
| Electronics | 2 |
| General | 3 |
| Health care | 1 |
| Measuring instruments | 2 |
| Medical | 2 |
| Nuclear physics | 4 |
| Physical sciences | 9 |
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