The anhydrite resources of our country are very abundant.
我国硬石膏资源非常丰富。
参考来源 - 防水硬石膏制品的研究The ability of anhydrite to react with water slowly to make gypsum forms the chemical basis for its use as a construction material.
硬石膏能与水缓慢的反应生成石膏，这是其可以作为建筑材料的化学基础。
参考来源 - 硬石膏煅烧与复合改性的效应研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N a colourless or greyish-white mineral, found in sedimentary rocks. It is used in the manufacture of cement, fertilizers, and chemicals. Composition: anhydrous calcium sulphate. Formula: CaSO4. Crystal structure: orthorhombic 硫酸钙
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