国产机器人企业研发效率评价及影响因素研究——基于DEA-Tobit两阶段分析法

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1001-7348|34|18|101-106

ISSN: 1001-7348

Source: 科技进步与对策, Vol.34, Iss.18, 2017-01, pp. : 101-106

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Abstract