值此世纪之交， 制订“十五”规划前夕的重要时刻，为启发思路， 推动企业进行产品结构调整、加强技术改造， 促进经济增长质量的提高， 我刊特新辟“专家论坛”专栏， 从本期起，陆续刊登特邀行业知名专家撰写的一些主要专业技术发展方向的专论。我们也欢迎其他专家围绕这方面内容撰写论文， 发表自已见解， 投寄本刊。 At the turn of this century, important moments were formulated on the eve of the “Tenth Five-Year Plan” to encourage companies to carry out product structural adjustments, strengthen technological transformation, and promote the improvement of the quality of economic growth. I have published a special “Expert Forum” column. From this issue, the monographs of some major professional technology development directions written by well-known experts in the industry are successively published. We also welcome other experts to write papers in this area, publish their own opinions, and submit it to this publication.