| 释义 |
alum/ˈæləm/n. Chem. 【化】 1 a double sulphate of aluminium and potassium 明矾 2 any of a group of crystalline salts which are double sulphates of a monovalent metal (or group) and a trivalent metal 明矾类物质 [Middle English via Old French from Latin alumen aluminis] |