• 1. multi row bearing: 多列轴承
• 2. multi-row bearing: 多列轴承 | 多列
• 3. multi-row radical thrust ball bearing: 多列向心推力球轴承

• 1.This type bearing consists of a sleeved outer ring, multi-row balls and a retainer.
  直线运动轴承由一个圆筒形外圈和多列钢球及保持架组成。
  dict.yoduao.com

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