运输供求关系

supply and demand interaction of supply and demand relation of market supply and demand relation of commodity supply and demand handling and transportation excess of supply over demand supply and sales agency water supply and sewerage work transportation means of transportation for the sick and wounded serviceman demand turnover of demand deposits among private and public deposits readjust supply and demand A supply and demand demand and supply model regulate supply and demand demand and supply law of supply and demand market supply-and-demand situation demand and supply of energy combined demand and supply curve equilibrium of supply and demand