十年磨一剑，青锋正披靡──依靠科技进步发展高效无粘结预应力技术的实践北京市建筑工程研究院副院长兼预应力所所长林远征高效预应力混凝土技术的发展是我国建筑技术的一大进步，不仅有效地节约了材料，而且能改善和提高建筑结构质量功能；此外，还有利于改变落后的建筑... Decades of grinding sword, Qing Feng is unbelievably - relying on scientific and technological progress to develop efficient non-bonded prestressed technology practice Beijing Institute of Construction Engineering vice president and director of prestress Lin Yuanzheng efficient prestressed concrete technology is A major advance in building technology in our country not only saves materials effectively, but also improves and enhances the quality of building structures; in addition, it is conducive to changing the backwardness of buildings.