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- The dehydration of dihydrate gypsum was affected, besides atmosphere and heating rate. 二水石膏的脱水性能除受气氛的影响外，还受到加热速度的影响，随着加热速度的提高，二水石膏脱水的吸热峰出现的温度点推后。
- The endothermic peak of dihydrate gypsum dehydration was delayed with heating rate increasing. 化学石膏颗粒比较细，使得热峰产生的范围较窄，峰形趋于尖而窄。
- The result shows, for this composite cement system, retarding action of dihydrate gypsum is more obvious than that of anhydrite, meanwhile, anhydrite tends to cause setting time short and water needed increased. 结果表明：二水石膏对该种复合体系水泥的缓凝作用比硬石膏明显，硬石膏易引起复合体系水泥急凝和需水量增大。
- In this paper, properties of composite binder and ordinary silicate cement were compared and the effect of dihydrate gypsum on properties of composite binder was emphatically studied. 采用硅酸盐水泥+粒化高炉矿渣粉+硅灰制成复合胶凝材料，与普通硅酸盐水泥进行性能比较研究，并重点研究了二水石膏（即三氧化硫含量）对复合胶凝材料性能的影响。
- Keywords dihydrate gypsum;crystallizer;crystallization kinetic; 二水硫酸钙;结晶器;结晶动力学;
- Keywords Gypsum;Dihydrate gypsum whiskers;Calcium sulfate whiskers;Hydrothermal;Preparation; 石膏;二水硫酸钙晶须;无水硫酸钙晶须;水热;制备;
- in distilled water and maximum lime wash, the dissolution rate of dihydrate gypsum is higher than that of anhydrite but the dissolubility is lower. 在蒸馏水和饱和石灰水中，二水石膏的溶解速度比硬石膏快，溶解度比硬石膏低。
- dihydrate gypsum 二水石膏
- Hemihydrate can be used instead of gypsum. 半水物硫酸钙可以用来代替石膏。
- A dense translucent, white or tinted fine-grained gypsum. 雪花石膏一种不透明的、白色或浅色的纹理细密的石膏
- Spec:Dihydrate and anhydrous standards. 规格：二水和无水两个品种。
- The yield of oxalic acid dihydrate is70.0%. 以木屑为原料草酸二水合物收率可达70.;0%25。
- The gypsum slurry is pumped into a diked area. 我们用泵将石膏料浆打到一块用堤围起来的空地中。
- This method of handling gypsum is satisfactory. 这种输送石膏的方法是令人满意的。
- Gypsum is the product of the process. 此方法的产物为石膏。
- Up to 5% of gypsum can be added to cement products. 水泥成品中最多可以添加5%25的石膏。
- Huoxingbaitu, bentonite series products, gypsum. 活性白土，膨润土系列产品，石膏。
- Gypsum line to avoid parch and split up. 石膏线避免干裂松动。
- Gypsum can be used as a soil conditioner. 石膏可以用作土壤改良剂。
- The adsorption of retarders on the surface of nuclei newly produced inhibits the crystal growth of dihydrate and accordingly controls the hydration process of gypsum. 缓凝剂在二水石膏晶胚表面的吸附，使其晶体生长受阻，成为水化的控制过程。
