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吞吐量是港口生产的重要指标,港口生产的正确决策是吞吐量发展的科学预测为前提,它是港口生产近期安排、中期计划、远期规划的基础。港口吞吐量的发展水平取决于沿江生产力布局、腹地经济发展、交通运输网结构、船舶运力、港口生产能力以及企业管理水平等诸多因素。这里有的信息是已知的,称之为“白色”;但更多的信息是未知的,称之为“黑色”。对任一较为复杂的经济系统总是“黑、白”信息并存,这种系统称之为灰色系统。所以,经济系统灰色是绝对的,而白色却是相对的。港口的吞吐量生产环境正是这样的灰色系统。
Throughput is an important indicator of port production. The correct decision of port production is based on the scientific prediction of throughput development. It is the basis for the short-term, mid-term and long-term planning of port production. The level of port throughput depends on such factors as the layout of productive forces along the Yangtze River, the economic development in the hinterland, the structure of transportation networks, the capacity of ships, the capacity of ports and the level of enterprise management. Some of the information here is known and is called “white,” but more information is unknown and is called “black.” For any more complicated economic system always “black and white” information co-exist, this system is called the gray system. Therefore, the economic system of gray is absolute, while white is relative. Port throughput production environment is such a gray system.