The gears adopt optimum design of fine-depth teeth and shot peening treatment in order to decrease noise if gearing and increase the capacity.
各齿轮副均采用优化细长齿轮，并进行强化喷丸，有效降低啮合噪音、提高承载能力。
Three methods of surface self-nanocrystallization for iron and steel are ultrasonic shot peening, high energy shot peening and surface mechanical attrition treatment.
实现钢铁材料表面自身纳米晶化的主要方法有超声喷丸、高能喷丸和机械研磨处理等。
The fatigue strength of commercial purity titanium was improved through shot peening or cold rolling treatment.
工业纯钛经喷丸、滚压强化后，疲劳强度得到不同程度的提高。
In this paper, the effect of heat treatment by the nitrogen atmosphere and vacuum furnace and shot peening thereafter on fatigue properties of 300m steel were studied.
本文对比分析了氮基保护气氛和真空两种热处理加热介质对300 M钢疲劳性能的影响，并研究了热处理后表面喷丸强化对300 M钢疲劳性能的改善情况。
In this paper, the effect of heat treatment by the nitrogen atmosphere and vacuum furnace and shot peening thereafter on fatigue properties of 300m steel were studied.
本文对比分析了氮基保护气氛和真空两种热处理加热介质对300 M钢疲劳性能的影响，并研究了热处理后表面喷丸强化对300 M钢疲劳性能的改善情况。
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