本文论述了国外对根蘖型苜蓿的研究概况，总结了培育根蘖型苜蓿的方法。
It has been reviewed the studies creeping rooted and summarized the methods of breeding creeping rooted lucerne abroad.
同时介绍了国外有关大众标注研究的概况、存在的不足。
Meanwhile, discusses the general situation and disadvantage of the study on folksonomy abroad.
介绍国外化工技术研究与开发全球化的概况。
This paper presented a survey of chemical technology research and global development overseas.
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