“great migrations”的概念、定义、翻译、参考文献-科学参考

单词	great migrations
释义	great migrations Encyclopedia 理学大迁徙释 great migrations大迁徙每年5～6月坦桑尼亚大草原旱季到来时，角马、瞪羚、斑马等数百万食草动物跋涉800多公里的集体迁徙现象。世界上最大的陆栖哺乳动物迁徙活动。又称东非动物大迁徙或非洲动物大迁徙。
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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。