if(document.getElementById('relative'))document.getElementById('relative').innerHTML='<div>前一篇：<a href=\"/other/chem_knowledge/show.asp?id=542752\" target=\"_self\">日桶值 Barrel per day (BPD)</a></div>\n<div>后一篇：<a href=\"/other/chem_knowledge/show.asp?id=549622\" target=\"_self\">自驾外出加油有讲究 汽油与乙醇汽油混用须知</a></div>\n';