After annealing coarse grain structure was observed and the impact ductility and the elongation of materials increased.
退火以后，发现材料的晶粒长大，材料的冲击韧性与延性提高。
On the surface of some jade ornament or crystal with coarse grain structure, the microscopic fissure can be formed along the cleavage.
在有些结晶颗粒较粗的翡翠饰品表面，硬玉晶体上可见沿解理形成的微细裂纹。
Among aluminium alloy indirect extrusion producing period, various process condition influence different result to the coarse grain structure.
铝合金反向挤压过程中，不同的挤压工艺条件对粗晶组织将产生不同的影响。
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