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用流变相反应法合成了二水邻苯二甲酸镁。Magnesium phthalate dihydrate was synthesized by rheological phase reaction.

研究以二水磷酸氢钙为原料，采用煅烧法生产无水磷酸氢钙。Anhydrous calcium hydrogen phosphate was prepared by calcination of calcium hydrogen phosphate dihydrate.

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重铬酸钠是NTP在研究中使用的一种含有六价铬的无机化合物。Sodium dichromate dihydrate is an inorganic compound containing hexavalent chromium that was used in the NTP studies.

缓凝剂对晶面的选择性吸附，改变了二水石膏晶体的生长习性和形貌。The preferred adsorption of retarders on different faces of gypsum crystal changes growth habit of dihydrate crystal and its crystal morphology.

可溶磷降低二水石膏脱水温度和液相过饱和度，使二水石膏晶体粗化，硬化体强度降低。It reduces dehydration temperature and solubility of dihydrate gypsum, makes gypsum crystals thick and wide, and reduces the strength of hardened body.

研究了在硅酸盐水泥中使用硬石膏完全代替二水石膏对硅酸盐水泥性能的影响。Substitute anhydrous gypsum for dihydrate gypsum in Potland cement production to study the effect of anhydrous gypsum on performance of Potland cement.

研究了用烧石膏代替二水石膏并掺入少量石灰石对水泥物理性能的影响。The influences of adding calcined gypsum instead of dihydrate gypsum and adding a little limestone on the physical properties of cement were investigated.

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采用微波加热处理二水硫酸钙晶须，脱水后成为半水或无水硫酸钙晶须。The calcium sulphate dihydrate whisker is treated by microwave heating, forming calcium sulfate hemihydrate or anhydrous sulphate of calcium after dehydration.

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。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.

揭示了缓凝剂对建筑石膏水化进程、晶体形貌和孔结构的影响规律和作用机制。The effecting law and action mechanism of retarders on hydration process of building gypsum, crystal morphology of dihydrate and pore structure have also been revealed.

双水焦磷酸钙结晶沉积可发生在脊柱，例如椎间盘，韧带、关节软骨，滑膜和关节囊。Calcium pyrophosphate dihydrate crystal deposition can occur in spinal structures such as intervertebral discs ligaments articular cartilage synovium and joint capsules16.

以水合醋酸锌和水合肼为反应物，在不使用任何表面活性剂的条件下，采用一种简单温和的液相法制备了氧化锌纳米棒束。ZnO nanorod bundles were synthesized by employing zinc acetate dihydrate and hydrazine hydrate as reactants via a simple mild solution method without using any surfactant.

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通过对远安磷石膏的粒度分析及矿物组成分析，确定了各粒级中二水石膏含量以及杂质的分布情况。The content of gypsum dihydrate in various partical size fractions and the size distribution of impurities of phosphogypsum was ascertain by carrying on a series of mineral composition test analysis.