System 7 DF, low profile V/UHF antenna, ELT, audio controller and a range of passive antennas and static dischargers, and Flight Logic EFIS.是什么意思_System 7 DF, low profile V/UHF antenna, ELT, audio controller and a range of passive antennas and static dischargers, and Flight Logic EFIS.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句