九十年代是天津市经济发展的关键时期,这一时期经济发展应完成三重转换:一是从粗放型生产经营方式转向集约型生产经营方式;二是从内向型经济格局转向外向型经济格局;三是从传统的产品经济运行机制转向商品经济运行机制。要实现这三重转换,必须依靠科技进步。 The nineties was a crucial period for the economic development of Tianjin. During this period, the economic development should be completed in a triple conversion mode: one should shift from extensive mode of production and operation to intensive mode of production and operation; the other should shift from an inward-oriented economy to an outward-oriented economy; The third is to shift from the traditional operation mechanism of product economy to the operation mechanism of commodity economy. To achieve this triple conversion, we must rely on scientific and technological progress.