Coarse grain and differ the stone material of a structure its exterior effect is poorer.
粗粒及不等粒结构的石材其外观效果较差。
The method of the invention belongs to the metallurgical technology for treating the alloy (coarse grain alloy) material obtained by magnetic separation nickel-copper bessemer matte.
本发明的方法，为一种处理由磁选铜镍高 锍得到的合金（粗粒合金）物料的冶金技术。
The grain size of the loess is coarse with high contents of unstable minerals, indicating that the Xining loess material source approximate to the loess region.
黄土粒度粗，不稳定重矿物含量高，表明西宁黄土区距黄土物源近。
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