[{"title":"( 3 个子文件 9.45MB ) 宽带匹配网络的理论与设计 作者:陈惠开","children":[{"title":"宽带匹配网络的理论与设计 (增订本)","children":[{"title":"bookinfo.dat <span style='color:#111;'> 128B </span>","children":null,"spread":false},{"title":"宽带匹配网络的理论与设计 (增订本)i.PDF <span style='color:#111;'> 123.92KB </span>","children":null,"spread":false},{"title":"宽带匹配网络的理论与设计 (增订本).PDF <span style='color:#111;'> 9.73MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]