积分变换 Traditional 積分變換 jī fēn biàn huàn 🔊 integral transform (math.) + Keep this word Meanings jī fēn biàn huàn 積分變換 integral transform (math.) Its characters 积jīto amass; to accumulate; to store upHSK 7–9分fēnminute (past the hour)HSK 1变biànto changeHSK 3换huànto exchangeHSK 3