ball bearing

名词 n.
中文释义

英文释义

名词 n.
  1. A bearing assembly which uses spherical bearing balls as the rolling elements, usually consisting of two ballraces (rings).
  2. An individual spherical ball, usually made of steel or other hard material, suitable for use in a ball-based rolling element bearing. broadly,often

词形变化

ball bearings plural ballbearing alternative
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