目的：研究种植体颈狭部直径变化对种植全口义齿及其支持组织应力状况的影响。
Objective: To study the stress states of the complete dentures supported by implants with varied neck diameter.
原始图像可发现小的和巨大动脉瘤，显示瘤腔、瘤壁、瘤体、占位效应准确，其瘤颈、瘤腔的信号多高于MRA；
The small or giant aneurysm, aneurysmal sac, wall, body, mass effect can be showed by the source images, its signals of aneurysmal neck and sac was higher than MRA.
分析了骆驼坡道行走时腿、驼颈、驼体运动特性对提高坡道行驶能力的作用。
It was also analysed the role of the movement of camel 's leg, neck and body in increasing camel' s slope-crossing ability.
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