refined plaster
... refined pig iron ==> 精炼生铁,再制生铁 refined plaster ==> 精石膏 refined salt ==> 精盐,精制盐,精制盐 ...
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石膏精矿 [矿业] gypsum concentrate
硬石膏精矿 [矿业] anhydrite concentrate
石膏型精密铸造 Plaster Precision Casting
·2,447,543篇论文数据，部分数据来源于NoteExpress
针对精陶大型、异型产品的开裂缺陷，从泥料、成型、烧成、石膏等多方面加以分析，从而找出了导致产品开裂的主要因素，提出了切实可行的解决方法。
This article analysis the cause of crazing defects in big and irregular fine potteries from materials, forming, firing, and plaster moulding etc. Then some feasible ways are brought up.
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