Reasonable positions are chosen according to the amount and direction of curly light rays so that influence of the raycurvature is avoid.
根据测量光线的弯曲偏移量和偏移方向,合理安排测量工位,避免了光线弯曲对测量结果带来的影响。
2
X-ray examination revealed that there were 69 cases whose cervical vertebral physiological curvature became straight or reverse, or with certain degree of degenerative change.
其中有69例患者经过X射线检查显示颈椎生理曲度变直或反向,或有不同程度的退行性改变。
3
The main manifestation of LDH in X-ray plain films is stenosis of intervertebral space, changes of edge of vertebra and physiological curvature and sequence, etc.