polycrystal copper

• 多晶铜

polycrystal copper的用法和样例：

例句

1. Experimental results based on the combined tension-torsion loading of thin-walled tubes of annealed polycrystalline Copper were introduced.
   摘要介绍用退火多晶铜薄壁管件进行拉扭组合试验的数据结果，研究拉伸预应变和扭转预应变下的后继屈服面的形状及演化趋势。