例句與造句

1. After the September 11 attacks, a nationwide ground stop was ordered at all US airports, which lasted for several days . Our article about this is at Security Control of Air Traffic and Air Navigation Aids.
2. Canada commenced the operation after the U . S . Federal Aviation Administration ( FAA ), implementing Security Control of Air Traffic and Air Navigation Aids ( SCATANA ), grounded all aircraft across the United States, an unprecedented action.
3. The Federal Aviation Administration would issue Security Control of Air Traffic and Air Navigation Aids emergency plan or SCATANA . This would ground all commercial air traffic in the US . Flights in the air would be diverted to nearby air ports.
4. It's difficult to find security control of air traffic and air navigation aids in a sentence. 用security control of air traffic and air navigation aids造句挺難的