Using of pre-drawing, extruding holes and shot peening techniques has shown obvious effect in extending the fatigue life of motorcycle chain.
用预拉、挤孔、喷丸等强化工艺来提高摩托车链条的疲劳寿命效果很明显；
In this lighting, I took this close shot of a rusty chain on a fence.
在这种光线下，我为一条篱笆上的锈铁链拍下这张特写。
In this lighting, I took this close shot of a rusty chain on a fence.
在这种光线下，我为一条篱笆上的锈铁链拍下这张特写。
应用推荐