The development of medical imaging has been developing in the direction of faster, more accurate, more stable and more cost-effective. From the development of X-ray imaging systems, from analog imaging to indirect digital imaging, direct digital imaging, to today's multi-functional dynamic imaging, it is developing towards this logical track. Dynamic DR is the only trend in the development of today's industry, and has a major relationship with its irreplaceability in clinical practice. The biggest clinical advantages of multi-functional dynamic DR are: millisecond-level high-definition dot film, large-format real-time imaging, and various applications. The importance of millisecond-level HD dots. Missed diagnosis is the most difficult and most fearful problem in the field of cash medicine. Because of the technology of the equipment, the operating specifications of the operating technicians, and the degree of cooperation of the patients, it is easy to affect the occurrence of missed diagnosis. Missing diagnosis eventually leads to misdiagnosis, which affects the patient's life safety. At present, the old X-ray machine and CR gradually withdraw from the historical stage, and the traditional static DR is gradually replaced by the dynamic DR, but the final static DR will definitely exit the historical stage quickly, because the static DR is in the form of static filming, which is easy to cause A large number of missed diagnosis and misdiagnosis. Dynamic DR, because of the ability to perform high-definition millisecond-level spotting under visual conditions, enables instant spotting in the case of prior positioning, thereby capturing the focus of the lesion and greatly reducing the misdiagnosis of missed diagnosis. For example, cervical vertebrae examination is mainly used for the diagnosis of dislocation between the ring and the atlas and the root fracture of the vertebral odontoid. The filming method is that the subject is lying on his back and the body is in the sagittal plane on the table. Vertical, the head is slightly raised, and the mouth is opened as much as possible; In the routine examination of the original static DR, it is often the case that the maxillary central incisor overlaps with the ring vertebra (since the head elevation angle is small or the centerline is on the upper side) or the bottom of the occipital bone overlaps the ring vertebra (the reason is that the head is over or centered) The phenomenon of lower line) produces more waste sheets; In the daily inspection of dynamic DR, you can avoid the above problems, because the dynamic DR perspective function can be used in the dynamic DR to allow the patient to adjust the optimal film angle and then expose, which can reduce the doctor's position requirements. To reduce repeated exposure. Laiwu Manhing Vegetables Fruits Corporation , https://www.manhingfood.com