本文从市场、投入产出角度，探讨了不同产量的化学石膏生产石膏制品的途径。
This article researches means of making gypsum productions with chemical gypsum as material from angles of market and input-output.
采用缎烧法和燕压法对化学石膏进行处理，研究了处理温度和外加剂对石膏性能的影响。
Study on utilizing desulphurization gypsum and phosphogypsum to produce self-leveling materiel wan carried our.
每一件艺术品代表的是人的创造力，人的潜力就是通过这些石膏、化学颜料或是青铜得以实现。
Yet every work of art represents human creativity, human potential realized in plaster, or acrylic paint, or bronze.
因蒸压法生产高强石膏，尾矿率在20％以上，若丢弃，既浪费资源；增加生产成本，又造成新的环境污染。本文从研究尾矿赋存状态和化学成份着手；
The tailings account for 20 percent in producing the gypsum by the method of if we do not use the tailings again, it must squander the resource, form pollution and increase the productive cost.
磷石膏是磷肥厂废渣，做为化学改良剂已成功的用于碱土改良。
Ardealite, a water residue from phosphate fertilizer factories, has been successfully used in the amelioration of alkaline soil as a kind of chemical amendment.
结果表明：以GB/T176—1996《水泥化学分析法》和GB/T5484—2000《石膏化学分析法》中的基准法即重量法不能准确测定含亚硫酸钙的脱硫灰中的硫含量；
The results showed that the gravimetric method commanded by GB/T176-1996 and GB/T5484-2000 was inaccurate to measure the sulfate content while the distillation method was comparatively accurate.
结果表明：以GB/T176—1996《水泥化学分析法》和GB/T5484—2000《石膏化学分析法》中的基准法即重量法不能准确测定含亚硫酸钙的脱硫灰中的硫含量；
The results showed that the gravimetric method commanded by GB/T176-1996 and GB/T5484-2000 was inaccurate to measure the sulfate content while the distillation method was comparatively accurate.
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