primary magnetic standard

英 [primary magnetic standard]
美 [primary magnetic standard]

中文释义

主磁点

单词分析

单词结构：

primary magnetic standard

字母数：25

记忆提示

🎯 重点记忆：

  • 单词拼写：primary magnetic standard
  • 核心含义：主磁点

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更新时间：2026-02-02 21:13:42