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| 飞行情报区; 飞行信息区 (一种定义了范围的空域，在该空域能提供飞行信息服务与警报服务。该空域应包含所有的航线结构及在横向限制以内的所有空域，除非它被另一个上部的飞行情报区所限制。在这种情况下，上面的飞行情报区的下边界就是下方情报区的垂直边界，而且还要与目视飞行规则 (VFR )规定的巡航高度相一致) | |||
| 飞行信息区 | |||
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| An airspace of defined dimensions extending upwards from the surface of the earth within which flight information service FIS and alerting service are provided | |||
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| FIR (MichaelBurov) | |||
| flight information region: 3 phrases in 1 subject |
| Aviation | 3 |
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