document.writeln("<Center><div class=\"doc\"><a href=\'/e/member/fava/add/?classid=74&id=52915\'  target=\'_self\'><i class=\"fa fa-file-word-o\"></i> 浅谈加工表面粗糙度和物理力学性能的影响因素研究文档下载.doc </a></div></Center>");