The linear correlation coefficient between femoral trabecular grade and femoral bone mineral content is 0.5276.
骨小梁等级与股骨骨盐含量之间的相关系数为0.5276。
Production technologies of food grade calcium hydrogen phosphate such as phosphoric acid purification method, bone glue extraction method and applications are introduced in detail.
本文介绍了国内外食用磷酸钙盐的概况，详细介绍了磷酸净化法、骨胶浸取法等食品级磷酸氢钙的生产工艺以及应用情况。
The oil shale can be used as construction materials, such as high grade cement filler, light concrete bone material-pottery grain and light brick materials, etc.
油页岩渣可用作建筑材料，如高档水泥填料、轻质混凝土骨料陶粒及轻质砖材料等；
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