pilot frequency obstruction的用法和樣例：
例句
- The CrossCorrelation is an essential means of getting disturbing industrial frequency.
互相關函數是確定工頻干擾雜訊頻率的一個重要手段。 - The hail proof communication network is severely disturbed by the same frequency and additional distortion of the co-adjustment which affects the sufficient work of the system.
目前防雹通信網路受到嚴重的同頻干擾以及附帶的互調失真，已經成為影響該系統有效工作的一大難題。
