technologie (1) science (1) santé publique et assainissement (1) entassement (1) architecture (1) surveillance (1) gestion (1) perte (1) information (1) capteur (1) République populaire de Chine (1) Monitoring (1) Causes (1) Cleaning (1) Implements (1) Article (1) Diseases (1) Methods (1) Tools (1) Technology (1) Standards (1) Science (1) Sanitation (1) Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca (1) Manufacturers' agents (1) Management (1) Grammar, Comparative and general--Article (1) Fires (1) Diseases (1) Disasters (1)