例句與造句

1. The Frequency Disturbance Recorder, or FDR, is a GPS-synchronized single-phase PMU that is installed at ordinary 120 V outlets.
2. Researchers at Virginia Tech received a NSF MRI grant from the National Science Foundation to develop the system, which became known as FNET . The first Frequency Disturbance Recorder was developed in 2003 with support from TVA ( Tennessee Valley Authority ) and ABB . The FNET the system went online in 2004.
3. It's difficult to find frequency disturbance recorder in a sentence. 用frequency disturbance recorder造句挺難的