a department ground-based agency that controls the movement of aircraft in flight, or at takeoff or landing, by issuing instructions to pilots regarding their altitude, speed, and course
air traffic controller noun
| 单词 | air traffic control |
| 释义 | air traffic controlnouna department ground-based agency that controls the movement of aircraft in flight, or at takeoff or landing, by issuing instructions to pilots regarding their altitude, speed, and course air traffic controller noun |
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