将目前松散的上下级职能关系变成紧密的纵向管理系统，减少了重复性劳动，提高了管理工作效率。
The presently loose functional relation of higher & lower levels will become closely longitudinal management system so as to reduce repeated labor and increase the management work efficiency.
结论：标志点定位的可重复性与标志点所在位置、人眼对标志点的准确识别尤其是在纵向上的识别以及X线片的质量有密切的关系。
Conclusion: the repeatability of identified landmarks is closely related to the location of the landmarks, the landmarks identification by human eyes and the quality of the X-rays.
纵向数据例如在每一采取的重复的测量数字服从频繁地随着时间的过去出现从许多生物医学和临床研究以及从其他科学区域。
Longitudinal data such as repeated measurements taken on each of a number subjects over time arise frequently from many biomedical and clinical studies as well as from other scientific areas.
应用推荐