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| régimen interior | |||
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| instalación de intercomunicación | |||
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internal system : 29 phrases in 15 subjects |
| Coal | 1 |
| Communications | 1 |
| Earth sciences | 1 |
| Economics | 1 |
| Finances | 1 |
| General | 1 |
| International Monetary Fund | 6 |
| Law | 2 |
| Life sciences | 1 |
| Marketing | 1 |
| Medical | 1 |
| Taxes | 9 |
| Transport | 1 |
| United Nations | 1 |
| Welding | 1 |