“东北政区变化”的概念、定义、翻译、参考文献-科学参考

单词	东北政区变化
释义	东北政区变化 Encyclopedia 历史学民族释 change of Northeast administrative region东北政区变化清初以来中国东北地区政区管理体制的发展演变过程。
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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。