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With respect to the repeated impact loads, we have analyzed the typical failure process and the fatigue cumulating plastic deformation of the coat. 对多次撞击载荷下涂层零件的典型失效过程和涂层与基体的疲劳累积塑性变形进行了初步分析。
If this happened at the surface of the leaves, the metal materials are very high due to repeated impact stress has been eroded, so called cavitation. 这种现象如果发生在叶片的表面，则金属材料因反复受到很高的冲击应力而被侵蚀，所以叫做气蚀。
Repeated impact tests on samples of laser cladding is done and microcosmic analysis to the appearance and mechanism of repeated impact contact fatigue damnification is mode. 进行了激光熔覆试件的多冲碰撞试验,并对多冲碰撞接触疲劳损伤的表象和机理进行了微观分析。
He made a resolution never to repeat the act. 他决心不再采取那种行动。
The flaws' forming and expanding mechanism had been analyzed and studied,that was happened on the laser coating under repeated impact load by SEM or some other methods. 对激光涂层进行了多次冲击碰撞试验,并通过SEM等手段分析研究了激光涂层在多冲碰撞载荷下的裂纹形成与扩展机理。
Or you can say history repeat itself. 或者说也可以说，历史经常重演。
They made me repeat/I was made to repeat the story. 他们逼我又把那事讲了一遍。
When the peak stress is same, the absorbed energy of material under the repeated impact contact load is more than under the static fatigue load. And absorbability is in inverse proportion with the distance from the impact point. 当峰值应力相同时,材料在多冲接触载荷下比静载荷和静疲劳载荷下吸收的能量多,且吸收量与离冲击点的距离成反比。
History repeat itself; historian repeat each other. 历史会重演; 历史学家则彼此重复地讲别人讲过的事情。
The failure form of laser coating under repeated impact load were studied.The fail mechanism of surface pitting and surfacial spalling of the pieces under repeated impact load were studied. 对激光熔覆涂层试样进行了多次冲击试验,分析和讨论了多冲件表面点蚀损伤机理和多冲件表面剥落损伤机理。
The teacher asked him to repeat what he had said. 老师要他重复他所讲的话。
Mary could repeat many poems from memory. 玛丽能背诵许多诗歌。
It is embarrassing to repeat what he said. 若要重复他说过的话,会很尴尬的。
Please repeat the following sentence after me. 请跟我朗读下面这句子。
The naughty boy had to repeat the fifth grade. 这个顽皮的男孩不得不重读五年级。
I repeat that we cannot undertake the task. 我再说一遍，我们不能承担这项任务。
These bullets fragment on impact. 这些子弹射中物体时爆炸成碎片。
I repeat: the runway is not clear for take-off. 我再说一遍: 跑道尚未畅通，不能起飞。
Her speech made a tremendous impact on everyone. 她的演说对大家震动很大。
The children can repeat the poem they've just learnt by heart. 这些孩子能背诵他们刚学过的诗歌。