Inclusion, gas holes and micro-crack can not be found in the welded joint. Further analysis of TEM indicates that substructures of acicular martensite are composed of cellular substructure and microtwinning.
进一步的接头TEM分析表明,组织中针状马氏体的亚结构由胞状亚结构和微孪晶组成。
参考来源 - 齿科钛金属的激光焊接性及接头应力有限元模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： infrastructure
同义词： foundation base fundament foot groundwork understructure
以上来源于: WordNet
N a structure, pattern, etc, that forms the basis of anything 基础
The structural model may be composed of 99 substructures each with 7000 degrees of freedom.
允许使用99个原级子结构，每个子结构的自由度数可达7000。
Such systems can be decomposed into a large linear main structure and one or more nonlinear substructures.
这类系统由模型参数已知的大的线性主结构与一个或多个非线性子结构组成。
The super element stiffness matrix and the stiffness contribution of substructures to the whole structure are developed.
推导了超级元刚度矩阵及子结构参与协同承载时对整体结构的刚度贡献。
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