And then the material performance was confirmed by a serious test such as low-temperature falling ball impact test and airbag deployment specification test.
并以低温落球试验、气囊展开特性试验对材料选择结果进行了验证，并对以后同类型的设计提供了参考。
The impact force is applied by a falling steel ball instead of the spring hammer (USA).
用一个跌落的钢球而不是用弹簧冲击器来施加冲击力(美国)。
The falling-ball impact wear tester designed by ourselves was used to investigate the microstructural changes in specimens tested under the condition similar to that of ball mills.
利用自行研制的落球冲击磨损实验装置，在模拟球磨机的工矿条件下，研究了冲击磨损后样品的组织结构变化。
The falling-ball impact wear tester designed by ourselves was used to investigate the microstructural changes in specimens tested under the condition similar to that of ball mills.
利用自行研制的落球冲击磨损实验装置，在模拟球磨机的工矿条件下，研究了冲击磨损后样品的组织结构变化。
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