中国经济改革的进程在体制上表现为计划经济的退位和市场经济的逐步确立，在经济类型上表现为国有经济战线的收缩和多元化市场主体的不断壮大。国有经济应当逐步从竞争性领域中退出，主要承担公共事业项目投资，支持发展公共基础性产业和需扶持的支柱产业、新兴产业，对此理论? The process of China’s economic reform is manifested in the system as the abolition of the planned economy and the gradual establishment of the market economy. In terms of the type of economy, the shrinking of the state-owned economy and the diversification of market players continue to grow. The state-owned economy should gradually withdraw from the competitive realm, mainly undertaking investment in public utilities projects, supporting the development of public basic industries and the pillar industries and emerging industries to be supported, and to this theory?