any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs
双语例句
The making of such a mold or cast, as with plaster of Paris. 制印模用石膏对这种模型或模子的制作，如用巴黎的石膏
A preparation of plaster of Paris and glue used as a base for low relief or as a surface for painting. 熟石膏粉供绘画或作浅层浮雕表面用的混有胶水的熟石膏制剂
