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occurring in : 20 phrases in 11 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Communications | 1 |
| Environment | 1 |
| General | 3 |
| Government, administration and public services | 2 |
| Metallurgy | 5 |
| Microelectronics | 1 |
| Nuclear physics | 1 |
| Optics branch of physics | 3 |
| Taxes | 1 |