[电] phase-versus-frequency response characteristic
xiàng wèi duì pín lǜ xiǎng yìng tè xìng ㄒㄧㄤˋ ㄨㄟˋ ㄉㄨㄟˋ ㄆㄧㄣˊ lv4 ㄒㄧㄤˇ ㄧㄥˋ ㄊㄜˋ ㄒㄧㄥˋ