Through microscopic observation and calculation of fractal dimension the seal coating failure of Al-Si.
通过微观观察及分形维数计算结果分析聚苯酯铝硅封严涂层失效原因。
Through observation and analysis of metal organism after explosive load experiments, fracture mechanisms of the mild steel and Si-Mn steel materias were specially studied.
通过爆炸加载试验观察分析其金相组织，研究低碳钢和硅锰钢材料的裂纹生成、扩展和断裂机制。
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