specified secondary standard instrument

英 [specified secondary standard instrument]
美 [specified secondary standard instrument]

中文释义

特定二次标准器

单词分析

单词结构：

specified secondary standard instrument

字母数：39

记忆提示

🎯 重点记忆：

  • 单词拼写：specified secondary standard instrument
  • 核心含义：特定二次标准器

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更新时间：2026-03-16 20:02:35