[{"title":"( 8 个子文件 511KB ) 电磁场与电磁波动画","children":[{"title":"动画","children":[{"title":"圆柱坐标分解.swf <span style='color:#111;'> 13.67KB </span>","children":null,"spread":false},{"title":"椭圆极化波.swf <span style='color:#111;'> 8.68KB </span>","children":null,"spread":false},{"title":"介质磁化001.swf <span style='color:#111;'> 15.29KB </span>","children":null,"spread":false},{"title":"线极化波.swf <span style='color:#111;'> 2.46KB </span>","children":null,"spread":false},{"title":"圆极化波.swf <span style='color:#111;'> 8.65KB </span>","children":null,"spread":false},{"title":"空间某一点圆极化波电场沿时间轴的分布.swf <span style='color:#111;'> 6.45KB </span>","children":null,"spread":false},{"title":"FlashPlayer7.exe <span style='color:#111;'> 964.00KB </span>","children":null,"spread":false},{"title":"球坐标分解.swf <span style='color:#111;'> 3.77KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]