“grain boundary defect”的概念、定义、翻译、参考文献-科学参考

单词	grain boundary defect
释义	grain boundary defect Encyclopedia 理学晶界缺陷释 grain boundary defect晶界属于同一固相但位相不同的晶粒之间的界面。是一种内界面；晶粒有时由若干个位向稍有差异的亚晶粒所组成，相邻亚晶粒间的界面称为亚晶界（晶粒的平均直径通常在0.015～0.250毫米，而亚晶粒的平均直径则为0.001毫米数量级）。
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