SHANDONG SCIENCE ›› 2017, Vol. 30 ›› Issue (4): 99-105.doi: 10.3976/j.issn.1002-4026.2017.04.016
• Other Research Article • Previous Articles Next Articles
LUO Yu-fan, LIU Xiao-rong, ZHU Shu-ya, ZHAO Wei-fan, LI Min*
Open Access This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0), which permits third parties to freely share (i.e., copy and redistribute the material in any medium or format) and adapt (i.e., remix, transform, or build upon the material) the articles published in this journal, provided that appropriate credit is given, a link to the license is provided, and any changes made are indicated. The material may not be used for commercial purposes. For details of the CC BY-NC 4.0 license, please visit: https://creativecommons.org/licenses/by-nc/4.0
