secondary reference standard material

英 [secondary reference standard material]
美 [secondary reference standard material]

中文释义

二级参考标准物质

单词分析

单词结构：

secondary reference standard material

字母数：37

记忆提示

🎯 重点记忆：

  • 单词拼写：secondary reference standard material
  • 核心含义：二级参考标准物质

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更新时间：2026-01-31 06:19:13