【電】 a-n signal a-n; sign; signal

1. 課程包括：電力系統(tǒng)，90分；訊號處理，88分；系統(tǒng)控制，92分；電力能源系統(tǒng)，92分；固體電子學，88分；通訊，94分。
   Curriculum included: Electric power systems, 90; Signal processing, 88; Systems and control, 92; Electric energy systems, 92; Solid-state electronics, 88; Communications, 94.
2. 變頻器將無線電訊號從一種頻率轉(zhuǎn)換成另一種頻率的電子裝置
   An electronic device that converts one frequency of a radio signal to another.

號的英語翻譯：