[{"title":"(2个子文件4.67MB)hpgl2语言规范(中英文)","children":[{"title":"HPGL+2+及RTL+绘图仪语言编程指南.pdf <span style='color:#111;'>1.49MB</span>","children":null,"spread":false},{"title":"HPGL2-RTL_ReferenceGuide_5961-3526_540pages_Sep96.pdf <span style='color:#111;'>3.63MB</span>","children":null,"spread":false}],"spread":true}]