| |||
| bidireccional; de doble sentido; de dos direcciones; en ambos sentidos | |||
|
a deux directions : 21 phrases in 7 subjects |
| Communications | 1 |
| Earth sciences | 4 |
| Electronics | 9 |
| Information technology | 1 |
| Life sciences | 1 |
| Mechanic engineering | 3 |
| Power system protection | 2 |