蜡、石膏/Wax, plaster.
按等腰三角形的形状确定方位翻制展览空间地窖的一块底面，将每块地表（翻制出来）的阴模（石膏）与阳模的背面叠放；阴面与所翻制的地表契合相扣，阳面朝上，代替被覆盖着的地表。
Determine the orientation based on an isosceles triangle shape to cast a section of the cellar floor from the exhibition space. Stack the negative mold (plaster) of each cast floor section with the back of the positive mold; the negative side interlocks with the cast floor surface, while the positive side faces upward, replacing the covered ground surface.