The only local coarse-grained sand-stones in the uppermost part are important for uranium.
仅最上面局部的粗粒砂岩对铀是有利的。
So far, the formulae of shear strength and deformation behaviors about coarse-grained materials are obtained from modification of constitutive models of sand.
目前，粗粒料的抗剪强度与变形特性表达式是在砂土特性研究基础上修改而得到的。
Yixing pottery is made of coarse-grained red, green, or purple clay that is known as "purple sand."
宜兴陶是用一种质地粗糙的红色、绿色或紫色陶土制成，该陶土称“紫砂”。
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