| |||
| señal de referencia de trama | |||
|
frame reference : 14 phrases in 7 subjects |
| Economics | 1 |
| Electronics | 6 |
| Meteorology | 2 |
| Physical sciences | 1 |
| Satellite communications | 1 |
| Technology | 1 |
| United Nations | 2 |
| |||
| señal de referencia de trama | |||
|
frame reference : 14 phrases in 7 subjects |
| Economics | 1 |
| Electronics | 6 |
| Meteorology | 2 |
| Physical sciences | 1 |
| Satellite communications | 1 |
| Technology | 1 |
| United Nations | 2 |