滚针,滚轮销

roller pin的用法和样例:

例句

  1. Needle roller bearing is a bearing.滚针轴承是轴承的一种。
  2. Combined needle roller bearings provide the means to produce locating bearing arrangements in a minimum of radial space.组合式滚针轴承在很小的径向空间里对固定端轴承配置进行定位。

1) Exhilarating Rides-Top 2) Roller Coasters in Europe Number 3, it’s Shock Wave, Europe’s only stand up roller coaster. It’s in the English Midlands. Shock Wave is a 3) cracking 90 seconds. Fir

发表于:2018-11-28 / 阅读(257) / 评论(0) 分类 疯狂英语2003年

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发表于:2019-02-10 / 阅读(122) / 评论(0) 分类 加州英语分级GK

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发表于:2019-02-10 / 阅读(138) / 评论(0) 分类 加州英语分级GK

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发表于:2019-02-10 / 阅读(130) / 评论(0) 分类 加州英语分级GK
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