Changzhou is an important city in Yangtze River Delta, whose technical innovation policy system has evolved for 20 years.Its evolution road includes four phases: building prototype phase(1984-1988), initial developing phase(1989-1991), modulating and systemizing phase(1992-2000),developing and perfecting phase (2001-).Policy evolution has taken on five characteristics: number and objects has raised, means and target has developed a system and projects has become more scientific and reasonable.%作为长三角区域的重要城市,常州市科技创新政策体系经过20多年的发展,其演变历程经历了雏形建立阶段(1984-1988),初步发展阶段(1989-1991)、调整与体系化阶段(1992-2000)和发展完善阶段(2001-),并呈现出政策数量由少变多,政策对象由窄到宽、政策手段由单一到体系、政策目标由松散到形成自上而下的系统、政策方案不断趋向科学和合理的五大特征.
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