survivable low frequency communications system造句

例句与造句

1. The site contained a 373.7 meters ( 1226 ft ) tall guyed mast antenna and hardened underground facility used for the Strategic Air Command's AN / FRC-117 Survivable Low Frequency Communications System.
2. In addition to being able to direct the launch of ICBMs, the E-6B can communicate Emergency Action Messages ( EAM ) to nuclear submarines running at depth by extending a 2?mile-long trailing wire antenna ( TWA ) for use with the Survivable Low Frequency Communications System ( SLFCS ), as the EC-135C could .[
3. It's difficult to find survivable low frequency communications system in a sentence. 用survivable low frequency communications system造句挺难的