 |
| |||
| sistema de reserva; sistema auxiliar | |||
| sistema de reserva pasiva; sistema de reserva fría; sistema de reserva inactiva | |||
| standby system: 20 phrases in 9 subjects |
| Computers | 1 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Electric motors | 1 |
| Electronics | 3 |
| Information technology | 10 |
| Mechanic engineering | 1 |
| Name of organization | 1 |
| United Nations | 1 |