Introduction to the sand table room: The 128-square-meter battlefield sand table reproduces the topography, topography, landforms and military deployment of Mazhanshan over 70 kilometers from Jiangqiao to Qiqihar City during the Anti-Japanese War. The sand table uses sound, light, and electricity to control the main defense lines of Jiangqiao's Anti-Japanese War. When the commentator talks about a certain defense line, the sound of gunfire and attacks will be heard from that place. In conjunction with the sound, the lights will flash at the same time, and the audience will feel The feeling of being there.