出典:Wikipedia
出典:『Wikipedia』 (2011/07/09 19:24 UTC 版)
Air traffic control (ATC) is a service provided by ground-based controllers who direct aircraft on the ground and in the air. The primary purpose of ATC systems worldwide is to separate aircraft to prevent collisions, to organize and expedite the flow of traffic, and to provide information and other support for pilots when able. In some countries, ATC may also play a security or defense role (as in the United States), or be run entirely by the military (as in Brazil).
管制空域.
the flow of air
制空権.
to control the operations of an airplane
the current of air
空中放電.
a pilot
航空路.
空中給油.