primary spectroscopic standard

英 [primary spectroscopic standard]
美 [primary spectroscopic standard]

中文释义

原光谱标准

单词分析

单词结构：

primary spectroscopic standard

字母数：30

记忆提示

🎯 重点记忆：

  • 单词拼写：primary spectroscopic standard
  • 核心含义：原光谱标准

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更新时间：2026-02-01 20:04:16