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The Hypothesis of Medicinal Gypsum Cooling Material
SONG Chen, ZHANG Zhi-jie*, BIAN Bao-lin*
石膏偏光显微镜下颗粒粒径变化图 (a): 平邑-6; (b): 应城7-1; (c): 龙源-2; (d), (e): 泰安-1; (f): 眉山-1