On the basis of the study mentioned above, the comprehensive effects theory for shot-peening strengthening is put forward.
在上述研究基础上，建立了喷丸强化的综合效应理论。
Based on the experiments of shot peening to some specimens, the paper makes an approach to strengthening mechanism and fatigue resistance technology for nodular cast iron.
对试样进行了喷丸处理，进而探讨了球铁材料的强化机制和抗疲劳技术。
Based on the experiments of shot peening to some specimens, the paper makes an approach to strengthening mechanism and fatigue resistance technology for nodular cast iron.
对试样进行了喷丸处理，进而探讨了球铁材料的强化机制和抗疲劳技术。
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