飞机接地，即被移交给地面管制单位。
Upon touch down, the flight is then handed off to Ground Control.
雷达服务单位为经过雷达识别的航空器提供雷达管制服务。
Radar services unit will provide radar control services to radar-identified aircraft.
雷达服务单位为经过雷达识别的航空器提供雷达管制服务。
Radar services unit will provide radar control services to radar-identified aircraft.
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