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n-p-n : 106 phrases in 10 subjects |
| Antennas and waveguides | 4 |
| Chemistry | 2 |
| Earth sciences | 1 |
| Electronics | 88 |
| Energy industry | 2 |
| Food service and catering | 2 |
| Forestry | 1 |
| Health care | 2 |
| Information technology | 3 |
| Transport | 1 |
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