[{"title":"( 3 个子文件 557KB ) 电磁场与电磁波孙玉发版","children":[{"title":"合肥工业大学电磁场与电磁波(孙玉发版)第5章答案.pdf <span style='color:#111;'> 264.58KB </span>","children":null,"spread":false},{"title":"第6章习题答案1(孙玉发主编电磁场与电磁波).pdf <span style='color:#111;'> 119.49KB </span>","children":null,"spread":false},{"title":"合肥工业大学电磁场与电磁波(孙玉发版)第4章答案.pdf <span style='color:#111;'> 301.25KB </span>","children":null,"spread":false}],"spread":true}]