典型文献
Chunyun versus lockdown
文献摘要：
Across the world,the news of COVID-19 was followed by 'lockdowns' that lim-ited societal activity and mobility to a greater or lesser degree.In China,how-ever,the situation was unique because the travel lockdown occurred in the middle of the year's most hectic travel season oc-curring around Chinese Lunar New Year(chunyun).
It is worth spending a moment to appreciate how massive chunyun is as an event.Chunyun,or 'Spring Trans-port'in Chinese,is literally the world's largest annual human migration[1],in 2016 estimated to result in almost 3 billion journeys[2].It starts around 15 days before New Year's Day and lasts for about 40 days.
文献关键词：
中图分类号：
作者姓名：
Sune Lehmann
作者机构：
DTU Compute,Technical University of Denmark,Denmark;Center for Social Data Science,University of Copenhagen,Denmark
文献出处：
引用格式：
[1]Sune Lehmann-.Chunyun versus lockdown)[J].国家科学评论（英文版）,2022(01):2-3
A类：
Chunyun,hectic,chunyun
B类：
versus,Across,world,news,was,followed,by,lockdowns,that,lim,ited,societal,activity,mobility,greater,lesser,degree,In,China,how,ever,situation,unique,because,travel,occurred,middle,year,season,curring,around,Chinese,Lunar,New,Year,
It,is,worth,spending,moment,appreciate,massive,event,Spring,Trans,port,literally,largest,annual,human,migration,estimated,result,almost,billion,journeys,starts,days,before,Day,lasts,about
AB值：
0.64076
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
