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| security clearance; security investigation; security screening; security vetting | |||
| investigación de seguridad: 15 phrases in 10 subjects |
| Electronics | 1 |
| General | 3 |
| Labor law | 1 |
| Law | 1 |
| Natural sciences | 2 |
| Nuclear physics | 3 |
| Patents | 1 |
| Politics | 1 |
| Research and development | 1 |
| Transport | 1 |