本文介绍了数字化射线照相技术对轻物质进行判断的方法。
The paper introduces how to use Digital Radio-Graph technology to identify a light substance.
扫描利用了一种叫做正电子发射X射线层析照相术(PET)的技术。 扫描用以监测脑中代谢葡萄糖（脑正常工作需要的营养物）的变化。
The scans, which used a technique called positron emission tomography (PET), were designed to monitor changes in the way the brain metabolised glucose, the fuel it needs to function.
这也是为什么人们被鼓励在学校、工厂这类的大规模的放射线照相术中使用X光技术。
This is why people are encouraged to have X-rays taken in the mass radiography units which go to schools and factories and such places.
但目前的射线实时成像检测技术在成像质量等方面与射线照相法有一定差距，检测灵敏度相对较低。
The image quality of real-time radiography, however, can not be as good as that of film, and its sensitivity is relatively low.
“计算机射线照相”技术中，磷板采集X光图像并被扫描随后图像被擦去以便重复使用。
CR (standing for "Computer Radiography") where a phosphor plate is impressed with the X-ray image and then scanned (and wiped to be used again).
简要评述小直径管对接焊缝射线照相的特点、方法以及现行技术规定。
The status of the radiographic technology for the butt-welded joints in small diameter tubes are re-viewed briefly. The key points are discussed for the development of radiographic technology.
简要评述小直径管对接焊缝射线照相的特点、方法以及现行技术规定。
The status of the radiographic technology for the butt-welded joints in small diameter tubes are re-viewed briefly. The key points are discussed for the development of radiographic technology.
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