×
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
在这里添加一些文本
Close
导航切换
Journal of Lanzhou University of Technology
Home
About Journal
Editorial Board
Guide to Authors
Subscription
Contact Us
中文
D
4
-
δ
-covers and their applications
WANG Yong-duo, WANG Ya-ting
Journal of Lanzhou University of Technology . 2020, (
4
): 154 -156 .