民营科技企业成为经济发展中的一支重要生力军从８０年代开始发展起来的民营科技企业，现已成为我国经济发展中的一支重要生力军。到目前为止，全国民营科技企业已有５５０００家，技工贸总收入超过５００亿元。去年，北京市在５万多家企业中评出“经济百强”，其中１２家... Private science and technology enterprises have become an important force in economic development. Privately-run science and technology enterprises that have been developed since the 1980s have now become an important force in China’s economic development. So far, there are 55,000 privately-owned science and technology enterprises across the country, and the total income from technology, industry, and trade exceeds 50 billion yuan. Last year, Beijing City ranked among the top 50,000 companies in the “Top 100 Economy”, including 12...