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| 仪表进近 (一种不用视觉参考，而利用飞机仪表和地面电子或通信设备进行的着陆进近。进行这样进近的飞机应该根据仪表飞行规则 (IFR )飞行计划来飞行。在如仪表着陆系统 (ILS)、地面控制进近 (GCA)、甚高频全向无线电信标 (VOR)、塔康系统、航向信标 (LOC)和全球定位系统 (GPS )等帮助下的进近可以列人仪表进近) | |||
| 仪表进场; 盲目进场 | |||
| 仪表进场着陆 | |||
| Inglés tesauro | |||
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| A series of predetermined manoeuvres by reference to flight instruments with specified protection from obstacles from the initial approach fix, or where applicable, from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en route obstacle clearance criteria apply | |||
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Instrument Approach : 64 a las frases, 7 temas |
| Aviación | 47 |
| Defensa aérea | 1 |
| Economía | 1 |
| Electrónica | 8 |
| Espacio | 3 |
| General | 1 |
| Tecnología | 3 |