Sulphate rocks are quite widely distributed in China; gypsum and anhydrite, in particular, have been found almost in all parts of China.
硫酸盐岩在中国分布很广泛，特别是石膏及硬石膏，其分布遍及各省、直辖市、自治区。
The types of ore are gypsum and anhydrite, with the high quality, simple mining conditions, the convenient traffic and the abundant energy.
矿石类型为石膏及硬石膏，矿石质量好，矿床开采条件简单，交通方便，能源充足，具有广阔的开发利用前景。
The SI data showed that gypsum and anhydrite we re in an unsaturated state, but calcite, aragonite and dolomite were in a super- saturated state in the groundwater.
饱和指数表明，地下水中石膏和硬石膏呈非饱和状态，而方解石、霰石呈过饱和状态。
Choosing potassium sulfate as an activator to stimulate the activity of natural anhydrite, and modified its properties by adding Portland cement and hemihydrate gypsum respectively.
选取硫酸钾作为激发剂对天然硬石膏进行活性激发，并分别掺入硅酸盐水泥与半水石膏进行改性。
Choosing potassium sulfate as an activator to stimulate the activity of natural anhydrite, and modified its properties by adding Portland cement and hemihydrate gypsum respectively.
选取硫酸钾作为激发剂对天然硬石膏进行活性激发，并分别掺入硅酸盐水泥与半水石膏进行改性。
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