TY - Journal of Shandong University(Engineering Science) A1 - WANG Qiang, XU Lei, PENG Shaofeng T1 - Mathematical model and simulation of pipe-annulus welding assemble surface and opening Y1 - 2015-12-20 JF - Journal of Shandong University(Engineering Science) JO - Journal of Shandong University(Engineering Science) SP - 71 EP - 75 VL - 45 IS - 6 UR - http://gxbwk.njournal.sdu.edu.cn N1 - 10.6040/j.issn.1672-3961.0.2015.111 ER -