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| 强制频率 (仅在某些时间内不受管制的选择的机场指定的频率。在指定的强制频率区运行的飞机上必须安装可保持双向通信的无线电通信设备,且必须在强制频率上监控并报告) | |||
| English thesaurus | |||
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| A very high frequency VHF specified in the Canada Air Pilot CAP, the Canada Flight Supplement CFS or the Canada Water Aerodrome Supplement CWAS for the use of radio-equipped aircraft operating within a mandatory frequency area | |||
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