一、国家粮食流通体制改革的总体特征（一）从两线运行体制转变为国家主导下的市场化运作体制。我国粮食流通近几年一直实行将粮食部门承担的政策性业务与商业性经营分开的两线运行体制。政策性业务包括国家定购粮、中央和地方储备粮的收购、进出口、储存、批发、调运和军... I. General Characteristics of the National Grain Circulation System Reform (1) From a two-lane operation system to a market-oriented operation system under the state-led operation. In recent years, the grain circulation in our country has been implementing the two-line operation system that separates the policy-based business from the commercial operation undertaken by the food sector. Policy businesses include state-ordered grain, acquisition of central and local grain reserves, import-export, storage, wholesale, shipping and military ...