例句與造句

1. The Defense Advanced Research Projects Agency ( DARPA ) continues to fund research in augmented reality HMDs as part of the Persistent Close Air Support ( PCAS ) Program.
2. "' Persistent Close Air Support "'( "'PCAS "') is a DARPA program that seeks to demonstrate dramatic capability improvements in close air support ( CAS ) capabilities by developing a system to allow continuous CAS availability and lethality to Joint Terminal Attack Controllers ( JTACs ).
3. It's difficult to find persistent close air support in a sentence. 用persistent close air support造句挺難的