back(ing) ring

英 [back(ing) ring]
美 [back(ing) ring]

中文释义

[机] 衬圈

单词分析

单词结构：

back(ing) ring

字母数：14

记忆提示

🎯 重点记忆：

  • 单词拼写：back(ing) ring
  • 核心含义：[机] 衬圈

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更新时间：2026-02-12 14:29:40