certification of a reference material

[certification of a reference material]
[certification of a reference material]

中文释义

标准物质的定值

单词分析

单词结构:

certification of a reference material

字母数:37

记忆提示

🎯 重点记忆:

  • 单词拼写:certification of a reference material
  • 核心含义:标准物质的定值