“USSR's three declarations on China”的概念、定义、翻译、参考文献-科学参考

单词	USSR's three declarations on China
释义	USSR's three declarations on China Encyclopedia 历史学中外关系释 USSR's three declarations on China苏联三次对华宣言 1919年7月至1923年9月，新兴的苏俄政府连续三次发表对华宣言，体现出与前俄帝国政府不同的对华政策，对当时中苏关系产生了巨大影响。
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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。