短語詞組短語departure e frequency 發(fā)車頻率bubble departure frequency 氣泡脫離頻率frequency departure 頻率偏差;頻率漂移;頻率變異;[通信]頻率偏移frequency departure meter 頻率漂移計long term frequency departure 長期頻偏intrinsic frequency departure 固定頻率偏離long -term frequency departure 長期頻偏frequency alias departure 頻率飄移 返回 departure frequency