navigation radio facilities造句

Gorrell's achievements as president of ATA were four-fold : the Civil Aeronautics Act of 1938 that provided civil aviation a secure economic base, development of a system of air navigation radio facilities in the United States and Alaska, preparation of a war plan for the utilization of the airlines, and the use of government contracts with the airlines to provide worldwide transportation during World War II . The ATA honors his legacy by annually awarding the " Edgar S . Gorrell Award " for outstanding contributions toward aviation safety.
It's difficult to find navigation radio facilities in a sentence. 用navigation radio facilities造句挺难的