藝術與建築詞典根目錄
....材料層面
........材料 (材料層面)
............材料
................<依成分區分之材料>
....................<無機/有機物質組成>
........................土壤
............................<依成分或來源區分之土壤>
................................砂
....................................建築用砂
|||........................................鋪地砂
|||........................................鋪路砂
|||........................................鋪屋頂砂
|||....................................鑄造砂