secondary seal(ing) unit

英 [secondary seal(ing) unit]
美 [secondary seal(ing) unit]

中文释义

次密封单元

单词分析

单词结构：

secondary seal(ing) unit

字母数：24

记忆提示

🎯 重点记忆：

  • 单词拼写：secondary seal(ing) unit
  • 核心含义：次密封单元

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更新时间：2026-02-08 01:09:02