directorate of research and development

英 [directorate of research and development]
美 [directorate of research and development]

中文释义

研究与发展局

单词分析

单词结构：

directorate of research and development

字母数：39

记忆提示

🎯 重点记忆：

  • 单词拼写：directorate of research and development
  • 核心含义：研究与发展局

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更新时间：2026-02-04 19:25:02