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| espacio de actividades | |||
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activity area : 19 phrases in 11 subjects |
| Earth sciences | 1 |
| Economics | 3 |
| Labor law | 1 |
| Law | 1 |
| Marketing | 1 |
| Materials science | 1 |
| Mineral products | 1 |
| Name of organization | 1 |
| Natural sciences | 1 |
| Research and development | 2 |
| United Nations | 6 |