... aged deterioration 老化损坏 mechanical deterioration 机械损伤 natural deterioration 天然劣化变质...
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The strength degradation ratio and strain energy loss were selected as damage indexes to analyze the deterioration law of the mechanical properties of concrete in different co.
采用强度退化率和应变能损失率为损伤指标，对不同腐蚀程度混凝土力学性能的退化进行分析。
When the load is the stress cycle, the mechanical properties of materials caused by the deterioration process is known as fatigue damage.
当荷载是循环往复应力时，引起的材料力学性能劣化过程称为疲劳损伤。
The results show that the HAZ microfissuring damage of superalloy EBW joints induces mechanical properties deterioration which is attributed to the EBW thermal shock.
结果表明，热冲击是高温合金电子束焊接热影响区的微裂纹损伤的主要原因，热冲击损伤效应导致接头力学性能的劣化。
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