The scanning machines, called "backscatter scanners," deliver a dose of ionizing radiation equivalent to 1 percent or less of the radiation in a dentalX-ray.
扫描机，所谓的“反射散射扫描仪”，发射出的电离辐射剂量相当于牙科辐射X射线的1%或更少。
2
Based on the new technology, We designed the intelligent automatic dentalXray film processon.
并在此基础上研制了智能型牙科X 光胶片自动冲洗机。
3
Objective To investigate a digital substraction technique with computer image processing for diagnosis on dentalXray films.