频闪观测仪

例句：

1. 1. This new model of the frequency flash observation instrument is more accurate than its predecessors.
   这款新型频闪光观测仪比前一代更精确。
2. 2. The engineer used the frequency flash observation instrument to inspect the electrical circuits.
   工程师使用频闪光观测仪检查电路。
3. 3. The frequency flash observation instrument was used to detect the fault in the power grid.
   频闪光观测仪被用来检测电网中的故障。