alum的中文意思、音标与词形变化

n. 明矾, 矾, 校友 [化] 明矾; 钾铝明矾

n. a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum n. a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum n. a double sulphate of aluminum and potassium that is used as an astringent (among other things)