var json1=({
  "LO": {
    "VOText": {
      "VO": [
        {
          "@id": "sld10_sound1",
          "@mp3ref": "p04lfp10a.mp3",
          "#text": "红外线的波长恰好在可见光谱的红色区域之外。"
        },
        {
          "@id": "sld10_sound2",
          "@mp3ref": "p04lfp10b.mp3",
          "#text": "人们经常把红外线辐射叫做热辐射。"
        },
        {
          "@id": "sld10_sound3",
          "@mp3ref": "p04lfp10c.mp3",
          "#text": "点击这个标签可以看到会发出红外射线的物体。"
        },
        {
          "@id": "sld10_sound4",
          "@mp3ref": "p04lfp10d.mp3",
          "#text": "所有的物体都会发出红外线，甚至你本身! "
        },
        {
          "@id": "sld10_sound5",
          "@mp3ref": "p04lfp10e.mp3",
          "#text": "红外线照相机能探测出身体发出的红外射线并在屏幕上展示出可视图形。 "
        },
        {
          "@id": "sld10_sound6",
          "@mp3ref": "p04lfp10f.mp3",
          "#text": "警方用这些照相机找到失踪的人，在夜间跟踪疑犯，或在充满烟雾的房间里找到人。 "
        },
        {
          "@id": "s2_sound1",
          "@mp3ref": "p04lfp11a.mp3",
          "#text": "红外线是原子震动产生的，物体越热，原子震动越快，这个物体产生的辐射也越强。 "
        },
        {
          "@id": "s2_sound2",
          "@mp3ref": "p04lfp11b.mp3",
          "#text": "物体温度越高，红外线波长越短。 "
        },
        {
          "@id": "s2_sound3",
          "@mp3ref": "p04lfp11c.mp3",
          "#text": "当某种物体热得发红时，有些射线波长非常短以至于肉眼都不能看到。"
        },
        {
          "@id": "s2_sound4",
          "@mp3ref": "p04lfp11d.mp3",
          "#text": "红外线烤炉也可用来加热食物，但与微波炉不同的是，红外线只能到达食物表面之下几毫米处。"
        },
        {
          "@id": "s2_sound5",
          "@mp3ref": "p04lfp11e.mp3",
          "#text": "面包机发出红外线，从外部强力加热面包。 "
        },
        {
          "@id": "s2_sound6",
          "@mp3ref": "p04lfp11f.mp3",
          "#text": "红外线也被应用于电视机和录像机的遥控器中。如果有人挡在遥控器和电视或录像机的探测器之间，遥控器就无法工作了。"
        },
        {
          "@id": "s3_sound1",
          "@mp3ref": "p04lfp12a.mp3",
          "#text": "长途电信在过去是作为电子信号由铜线来传输的。但是现在主要是由光纤内的红外线传输的。"
        },
        {
          "@id": "s3_sound2",
          "@mp3ref": "p04lfp12b.mp3",
          "#text": "用红外线而不用可见光是因为红外线能更容易透过玻璃。"
        },
        {
          "@id": "s3_sound3",
          "@mp3ref": "p04lfp12c.mp3",
          "#text": "点击每个图表的数字部分可以看到铜线与光纤的不同之处。"
        },
        {
          "@id": "s4_sound1",
          "@mp3ref": "p04lfp13a.mp3",
          "#text": "阳光包含多种电磁波，从红外线到紫外线。"
        },
        {
          "@id": "s4_sound2",
          "@mp3ref": "p04lfp13b.mp3",
          "#text": "有些红外线被你的皮肤吸收，使你感觉温暖。"
        },
        {
          "@id": "s4_sound3",
          "@mp3ref": "p04lfp13c.mp3",
          "#text": "过度暴露在红外线下会引起灼伤。"
        }
      ]
    },
    "Labels": {
      "Label": [
        {
          "@id": "slide10_s1_lab1",
          "#text": "红外射线"
        },
        {
          "@id": "slide10_s1_lab2",
          "#text": "波长"
        },
        {
          "@id": "slide10_s1_lab3",
          "#text": "长波"
        },
        {
          "@id": "slide10_s1_lab4",
          "#text": "中波"
        },
        {
          "@id": "slide10_s1_lab5",
          "#text": "短波"
        },
        {
          "@id": "slide10_s1_lab6",
          "#text": "高频"
        },
        {
          "@id": "slide10_s1_lab7",
          "#text": "超高频"
        },
        {
          "@id": "slide10_s1_lab8",
          "#text": "微波"
        },
        {
          "@id": "slide10_s1_lab9",
          "#text": "红外线"
        },
        {
          "@id": "slide10_s1_lab10",
          "#text": "紫外线"
        },
        {
          "@id": "slide10_s1_lab11",
          "#text": "X光"
        },
        {
          "@id": "slide10_s1_lab12",
          "#text": "伽马射线"
        },
        {
          "@id": "slide10_s1_lab13",
          "#text": "长 "
        },
        {
          "@id": "slide10_s1_lab14",
          "#text": "千米"
        },
        {
          "@id": "slide10_s1_lab15",
          "#text": "1米"
        },
        {
          "@id": "slide10_s1_lab16",
          "#text": "1毫米"
        },
        {
          "@id": "slide10_s1_lab17",
          "#text": "0.001毫米"
        },
        {
          "@id": "slide10_s1_lab18",
          "#text": "波长"
        },
        {
          "@id": "slide10_s1_lab19",
          "#text": "0.000001毫米"
        },
        {
          "@id": "slide10_s1_lab20",
          "#text": "0.000001毫米"
        },
        {
          "@id": "slide10_s1_lab21",
          "#text": "很短"
        },
        {
          "@id": "slide10_s1_lab22",
          "#text": "光"
        },
        {
          "@id": "slide10_s1_lab23",
          "#text": "紫外线"
        },
        {
          "@id": "slide10_s1_lab24",
          "#text": "红外射线"
        },
        {
          "@id": "slide10_s1_lab25",
          "#text": "热辐射"
        },
        {
          "@id": "slide10_s1_lab26",
          "#text": "点击这个标签可以看到会发出红外射线的物体。"
        },
        {
          "@id": "slide10_s1_lab27",
          "#text": "至"
        },
        {
          "@id": "slide10_didtitle",
          "#text": "你知道吗？"
        },
        {
          "@id": "slide10_didtext",
          "#text": "热录像仪用电子设备把身体发出的红外线转换成图像，这就是温度自记曲线。这一技术在医学上被用于检测肿瘤，其比健康组织温度高。 "
        },
        {
          "@id": "slide10_instruct",
          "#text": "点击我找到更多信息!"
        },
        {
          "@id": "slide11_s2_lab1",
          "#text": "红外线"
        },
        {
          "@id": "slide11_s2_lab2",
          "#text": "波长 10<sup>-6</sup>m to 10<sup>-3</sup>m"
        },
        {
          "@id": "slide11_s2_lab3",
          "#text": "辐射热能"
        },
        {
          "@id": "slide12_s3_lab1",
          "#text": "铜线"
        },
        {
          "@id": "slide12_s3_lab2",
          "#text": "光纤"
        },
        {
          "@id": "slide12_s3_lab3",
          "#text": "光纤"
        },
        {
          "@id": "slide12_s3_lab4",
          "#text": "全内反射"
        },
        {
          "@id": "slide12_s3_lab5",
          "#text": "点击每个图表的数字部分可以看到铜线与光纤的不同之处。"
        },
        {
          "@id": "slide12_s3_lab6",
          "#text": "在光纤传输中信号变弱现象更少，因为能量几乎不丢失。 "
        },
        {
          "@id": "slide12_s3_lab7",
          "#text": "红外线传输的信号。信号中没有干扰。 "
        },
        {
          "@id": "slide12_s3_lab8",
          "#text": "光纤电缆的直径要小得多，但它与铜线所能传输的电话数量一样多。"
        },
        {
          "@id": "slide12_s3_lab9",
          "#text": "铜线与光纤作对比。"
        },
        {
          "@id": "slide12_s3_lab10",
          "#text": "被作为电信传输的信号。电信的信号中会有一些干扰和噪音。"
        },
        {
          "@id": "slide12_s3_lab11",
          "#text": "铜线传输中能量要丢失很多，所以它的信号弱并且每4至5千米就需要增强。"
        },
        {
          "@id": "slide12_s3_lab12",
          "#text": "这个电缆虽然直径很大，但只能与直径较小的光纤电缆传输同样多的电话。 "
        },
        {
          "@id": "slide12_s3_lab13",
          "#text": "红外线照片"
        },
        {
          "@id": "slide13_s4_lab1",
          "#text": "超高频"
        },
        {
          "@id": "slide13_s4_lab2",
          "#text": "微波"
        },
        {
          "@id": "slide13_s4_lab3",
          "#text": "红外线"
        },
        {
          "@id": "slide13_s4_lab4",
          "#text": "紫外线"
        },
        {
          "@id": "slide13_s4_lab5",
          "#text": "X光"
        },
        {
          "@id": "slide13_s4_lab6",
          "#text": "伽马射线"
        },
        {
          "@id": "slide13_s4_lab7",
          "#text": "长"
        },
        {
          "@id": "slide13_s4_lab8",
          "#text": "千米"
        },
        {
          "@id": "slide13_s4_lab9",
          "#text": "1米"
        },
        {
          "@id": "slide13_s4_lab10",
          "#text": "1毫米"
        },
        {
          "@id": "slide13_s4_lab11",
          "#text": "0.001毫米"
        },
        {
          "@id": "slide13_s4_lab12",
          "#text": "波长"
        },
        {
          "@id": "slide13_s4_lab13",
          "#text": "0.000001毫米"
        },
        {
          "@id": "slide13_s4_lab14",
          "#text": "0.000000001毫米"
        },
        {
          "@id": "slide13_s4_lab15",
          "#text": "很短"
        }
      ]
    }
  }
});
