单词 | plaster of Paris |
释义 | plaster of Paris n. Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, CaSO4· 1/2 H2O, a white powder that forms a paste when it is mixed with water and then hardens into a solid, used in making casts, molds, and sculpture. [Middle English, after Paris2, France.] |
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