TY - Journal of Shandong University(Engineering Science) A1 - MA Bao-dong1, GAO Bao-yu2*, LU Lei3, ZHANG Yong-qiang2 T1 - Y1 - 2010-08-16 JF - Journal of Shandong University(Engineering Science) JO - Journal of Shandong University(Engineering Science) SP - 117 EP - 120 VL - 40 IS - 4 UR - http://gxbwk.njournal.sdu.edu.cn N1 - ER -