短語詞組短語radio frequency carrier shift 射頻載波漂移frequency -shift algorithm 移頻算法的frequency y shift modulation 頻移調(diào)制audio frequency tone shift 轉(zhuǎn)換音頻音調(diào)frequency carrier shift 射頻載波漂移frequency y shift modulator 頻移調(diào)制器 返回 frequency shift