...非机械轮管金属卷轴 Winding spools of metal, non-mechanical, for flexible hoses 钢滚珠 Balls of steel 机器传动带用金属加固材料 Machine belts (Reinforcing materials of metal for –) ..
Statistic data shows that 65% of bearing invalidation formats is induced by surface defects ofsteelballs.
实验统计表明：在轴承的失效形式中，由于钢球表面的缺陷而引起的裂纹、裂缝造成的轴承失效达65%。
2
The worn surfaces of the steelballs were analyzed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).
用扫描电子显微镜(sem)和X射线光电子能谱仪(XPS)对钢球磨损表面进行了分析。
3
Waves of deafening sound come from a steel pipe spiraling over the scaffolding, within which a set of invisible iron balls circulate endlessly around the exhibition space.