approach control
| system
| approach control abbr. | |
| commer. transp. avia. | control de aproximación |
| mun.plan. transp. | mando de aproximación |
| railw. sec.sys. | mando por aproximación |
| System abbr. | |
| comp., MS | Sistema |
| system abbr. | |
| comp., MS | sistema |
| earth.sc. mech.eng. | sistema termodinámico |
| health. | emergencias; sistema |
| IMF. | régimen; plan; sistema |
| IT | generación del sistema |
| math. | el sistema |
|
approach control : 25 phrases in 7 subjects |
| Aviation | 2 |
| Commerce | 4 |
| Communications | 3 |
| General | 1 |
| Meteorology | 2 |
| Technology | 7 |
| Transport | 6 |