“第9族元素”的概念、定义、翻译、参考文献-科学参考

单词	第9族元素
释义	第9族元素 Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 Group 9 element第9族元素
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。