grain boundary

• 晶界

grain boundary的用法和样例：

例句

1. Grain boundaries have an important influence on the strength and ductility of metals.
   晶界对金属的强度和延展性有极大的影响。
2. Photomicrograph of alloy overheating showes fraction grain boundary coarsening and melt-back delta at first.
   其过烧特征最初表现为晶界局部加宽和复熔三角形的出现。