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粘土和石灰石高溫煅燒后加入適量的石膏磨成細粉，所得產品是。com/zhidao/pic/item/472309fce487ed4ca7bcb0b46d48a.baidu.com/zhidao/wh%3D450%2C600/sign=c1116ba3ba389b5038aae856b005c9eb/472309fce487ed4ca7bcb0b46d48a.hiphotos;
