certification of a r
查询英语单词中文释义、音标、发音和例句。
certification of a reference material
英
[certification of a reference material]
美
[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
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更新时间:2026-08-28 09:43:28