national primary kilogram standard

英 [national primary kilogram standard]
美 [national primary kilogram standard]

中文释义

[计量] 国家千克基准器

单词分析

单词结构：

national primary kilogram standard

字母数：34

记忆提示

🎯 重点记忆：

  • 单词拼写：national primary kilogram standard
  • 核心含义：[计量] 国家千克基准器

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更新时间：2025-12-11 13:48:55