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| bidirecional | |||
| misto; nos dois sentidos | |||
| bidirecional | |||
| bidireccional | |||
| duplex desaconselhado neste sentido | |||
| dubbelriktad: 41 phrases in 12 subjects |
| Brazil | 1 |
| Communications | 5 |
| Electronics | 17 |
| General | 2 |
| Information technology | 6 |
| Life sciences | 1 |
| Mechanic engineering | 1 |
| Microsoft | 1 |
| Radio | 1 |
| Semiconductors | 4 |
| Technology | 1 |
| Transport | 1 |