breech operating mechanism

英 [breech operating mechanism]
美 [breech operating mechanism]

中文释义

开闭机构

单词分析

单词结构：

breech operating mechanism

字母数：26

记忆提示

🎯 重点记忆：

  • 单词拼写：breech operating mechanism
  • 核心含义：开闭机构

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更新时间：2026-02-02 20:37:53