puits (2) transport (2) société (humaine) (2) physique (2) industrie (2) géophysique (2) émission (2) science économique (2) République populaire de Chine (2) Transportation, Automotive (2) Transportation (2) Reproduction (2) Physics (2) Industries (2) Geophysics (2) Estimates (2) Economics (2) Aeronautics (2) Addition (2) Transportation (2) January (2) Seasonal variations (2) Aviation (2) Estimates (2) spectacle (1) politique (1) oxydes d'azote (1) vacances (1) consommation de combustible (1) combustible fossile (1)