额带式交、直流两用手术放大镜江苏淮阴市第一人民医院眼科孙建初江苏无锡市江宁机械厂机动科钱荣生由于手术显微镜价格昂贵，要普遍推广应用，尚受设备条件等因素的限制，笔者根据额带式手术放大镜结合头灯原理，制作一种简便、轻巧的额带式交、直流两用手术放大镜，经临... Frontal with AC and DC surgical magnifying glass First People’s Hospital of Huaiyin City, Jiangsu Province, Sun Jianchu Jiangsu Wuxi Jiangning Machinery Factory Motor Division Qianrongsheng surgery microscope expensive to be generalized and applied, are subject to equipment and other factors, The author according to the forehead with a surgical magnifying glass combined with headlights principle, making a simple, lightweight forehead with AC and DC surgical magnifying glass, the Pro ...