×
模态框(Modal)标题
在这里添加一些文本
Close
Close
Submit
Cancel
Confirm
×
模态框(Modal)标题
×
Toggle navigation
Home
About Journal
Editorial Board
Journal
Just Accepted
Current Issue
Archive
Most Read
Most Download
Most Cited
Subscription
Publication Ethics
OA Policy
Contact Us
中文
自主研发与协同创新贡献的门槛特征研究
——基于中国高技术产业的估计
俞立平 孙建红 刘爱军
. 2014, (
5
): 537 -542 . DOI: 10.3969/j.issn.1006-6055.2014.05.011