The physical model, on the other hand, is 2,700 layers, one millimeter thick, it weighs 700 kilos, it's made of sheet that can cover this entire auditorium.
另一方面，这个实体模型 有2700层1毫米厚的叠层 重约700公斤，是用可以覆盖这整个礼堂 的薄板做成的