Top-20 keywords that showed significant decrease in appearance in 20 years.
收藏Figshare2015-12-03 更新2026-04-29 收录
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https://figshare.com/articles/dataset/_Top_20_keywords_that_showed_significant_decrease_in_appearance_in_20_years_/1395218
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资源简介：
Top-20 keywords that showed significant decrease in appearance in 20 years.
创建时间：
2015-12-03
