“The Great Migration of African Americans”的概念、定义、翻译、参考文献-科学参考

单词	The Great Migration of African Americans
释义	The Great Migration of African Americans Encyclopedia 历史学美国历史释 The Great Migration of African Americans黑人大迁徙 1916～1970年约600万非裔美国人从美国南部各州的乡村地区迁徙至东北部、中西部以及西部地区的大规模人口流动。又称北上大迁徙。
随便看	time system timetable problem timetables of sunrise，sunset，moonrise and moonset Tim Etchells time-temperature equivalence principle time temperature equivalent principle time-temperature equivalent principle time-temperature index time-temperature-stress equivalence principle time-temperature transformation diagram time-temperaturetransformation diagram time-temperature transformation diagram,3T diagram time tick time to amplitude convertor time to digital converter time-to-failure measure time to first fix time-to-go time to live time to peak concentration time transfer time transfer GNSS receiver time transformation time translation time translation invariance

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