医生使用Ｘ光机透视或拍片来诊断人体疾病的方法，人所皆知。但随着人们自我保护意识及环境保护概念的不断加强，医生与病人都希望能有一种放射剂量低，对人体基本无害的Ｘ线机来替代传统型Ｘ光机。现在，这种“绿色”机型已问世，首批两台产品已分别在北京医科大学第一附属医 It is well-known that doctors use X-ray machines to make fluoroscopic or film diagnosis of human diseases. However, with the increasing awareness of self-protection and the concept of environmental protection, both doctors and patients hope to replace the traditional X-ray machine with a low-dose X-ray machine that is basically harmless to the human body. Now, this “green” model has come out, the first two products have been the first Affiliated Hospital of Beijing Medical University