column roller

• 圆柱滚子

column roller的用法和样例：

例句

1. The dimensions of the four-row cylindrical roller bearings are not standardized.
   四列圆柱滚子轴承的尺寸未标准化。
2. Cylindrical roller backing bearings without flanges or flange rings cannot accommodate any axial load.
   无挡边或挡圈的圆柱滚子支承轴承不能承受任何轴向负荷。