packoff bushing

英 [packoff bushing]
美 [packoff bushing]

中文释义

密封补心

单词分析

单词结构：

packoff bushing

字母数：15

记忆提示

🎯 重点记忆：

  • 单词拼写：packoff bushing
  • 核心含义：密封补心

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更新时间：2026-02-07 06:11:20