例句與造句

1. The DAGR replaced the Precision Lightweight GPS Receiver ( PLGR ), which was first fielded in 1994.
2. There have been several system improvement programs, including the Integrated Communications Security ( ICOM ) models, which have provided integrated voice and data encryption, the Special Improvement Program ( SIP ) models, which add additional data modes, and the advanced SIP ( ASIP ) models, which are less than half the size and weight of ICOM and SIP models and provided enhanced FEC ( forward error correction ) data modes, RS-232 asynchronous data, Packet Data formats, and direct interfacing to Precision Lightweight GPS Receiver ( PLGR ) devices providing radio level situational awareness capability.
3. It's difficult to find precision lightweight gps receiver in a sentence. 用precision lightweight gps receiver造句挺難的