Scanning electron microscopy (2) Diffraction (2) puits (1) recherche (1) calcaire (1) analyse (1) exposition (1) environnement (1) énergie (1) dégradation (1) dommage (1) ville (1) chlore (1) substance chimique (1) climat tropical (1) carbonate (1) ordre (1) bâtiment (1) Mexique (1) Description and travel (1) Cultural property (1) Microscopy (1) Labor (1) Om (1) X-rays (1) Weathering of buildings (1) Weathering (1) Tropics--Climate (1) Sulfur (1) Steel (1)