photoradiogram

例句：

1. 1. The photoradiogram shows the location of the lost treasure.
   这张照片无线电图显示了失窃宝藏的位置。
2. 2. The radiogram was used to transmit signals over long distances.
   无线电图被用来在远距离上传输信号。
3. 3. The photoradiogram is a valuable tool for archaeologists.
   照片无线电图是考古学家宝贵的工具。