飞机一旦进入波兰领空，波兰民航当局会秘密的引导航班，不留下任何公共记录。
Once Polish air space was entered, the Polish aviationauthority would secretly shepherd the flight, leaving no public documentation.
该航空营运许可证(AOC)在JAR - OPS的环境(或在美国航空承运人证书)的正式文件印发，由国家民航当局的航空公司。
The air Operator's Certificate (AOC) in a JAR-OPS environment (or air Carrier Certificate in the US) is an official document issued to an airline by the state civil aviation authorities.
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