×
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
×
中文
English
Toggle navigation
Home
Journal Information
Aims and Scopes
Editorial Board
Publishing Policy
Journal Online
Just Accepted
Current Issue
Archive
Most Read Articles
Most Download Articles
For Authors
Guidelines for Authors
Academic Standardand
Publishing Ethic Statement
Definition of Academic Misconduct
Publishing Ethic Statement
Contact Us
Research on the Regional Hot Demand Technology of Beijing-Tianjin-Hebei Based on Patent Technology Transaction Data
CHENG Lipei, DONG Cewei, ZHANG Zhaoyi, GUO Jingwen, HE Xijun
农业图书情报学刊 . 2018, (
7
): 5 -5 . DOI: 10.13998/j.cnki.issn1002-1248.2018.07.001
