document.write("·<a href='article/");document.write("201707");document.write("/");document.write("855");document.write(".html'>上一条：");document.write("解析PCB线路板基本知识");document.write("</a>");document.write("<br />·<a href='article/");document.write("201707");document.write("/");document.write("848");document.write(".html'>下一条：");document.write("PCB电路板浅析我国印刷电路板行业竞争格局分析");document.write("</a>");