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plas.ter SUBSTANCEH5plB:7stE5, $5plAs7tLn [U]a substance which becomes hard as it dries and is used esp. for spreading on walls and ceilings in order to give a smooth surface灰泥，灰浆The plaster on the walls had cracked as it dried.由于干燥，墙上的灰浆出现了裂缝。A roof leak has damaged a section of ceiling plaster.房顶上的一个裂缝使得屋顶上的一部分灰浆受到损坏。The wall paintings were frescoes, painted in the traditional way on wet plaster.墙上的画是湿壁画，是用传统的方法画在湿灰浆上的。Plaster of Paris is a mixture of a white powder and water which becomes hard quickly as it dries and is used esp. to make plaster casts.熟石膏A plaster cast (also cast) is a shape made of plaster of Paris, either a protective covering for a broken bone or a copy of another object such as a statue.石膏模型(Br) If a part of the body is in plaster (Am and Aus also in a cast), it has a plaster cast around it to protect it while it heals.打石膏When I broke my leg, I had it in plaster for about six weeks.我腿摔断后，腿上了6 周的石膏。 [PLASTERBOARD]
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