常見(jiàn)例句雙語(yǔ)例句It was recommended that people used burnt hartshorn, the burnt shells of snails and burnt gypsum.有人建議人們使用燒過(guò)的鹿角、燒過(guò)的蝸牛殼和燒過(guò)的石膏。The difference of effects of burnt lime and hydrated lime, raw gypsum and burnt gypsum on white cement was studied, and the optimal type of lime and gypsum was determined.研究了生石灰和熟石灰、生石膏和熟石膏對(duì)無(wú)熟料白水泥的影響差異，確定了最優(yōu)石灰和石膏類型。 返回 burnt gypsum