must a white gypseous statue need to be drawn darkly?
原本是白色的石膏像,一定要画得黑球球?
must a white gypseous statue need to be drawn darkly?
原本是白色的石膏像,一定要画得黑球球?
The specific properties of gypsum and its slurry, the effect of different refractories on the properties of plaster molding, and how to control main process of gypseous mold are analyzed.
在大量究的基础上,阐述了有关石膏型铸工艺的几个要技术问题,分析了石膏及其浆料的特性,各种对石膏型性能的影响,以及如何控制石膏型铸造的要工艺过程
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