| 释义 |
Gypsum plaster gypsum plaster[′jip·səm ¦plas·tər] (materials) Plaster made principally from gypsum. Also known as gypsum cement. Gypsum plasterA hard, fire-resistant, quick-setting plaster with ground gypsum mixed with a retardant as the main ingredient.gypsum plasterGround gypsum that has been calcined and then mixed with various additives to control its setting and working qualities; used, with the addition of aggregate and water, for base-coat plaster. |