目的探讨鼻窦骨化纤维瘤的CT诊断.OBJECTIVE To improve the CT diagnosis of ossifying fibroma in paranasal sinus.目的为研究黄韧带骨化致椎管狭窄的机制打下基础.Objective To study the mechanism of ossification of yellow ligament.结论:硬膜骨化是OLF常见的表现.Conclusion . Dura...
并具有去污, 杀菌, 防 静电, 防尘的功效.And a decontamination, sterilization, anti - static, the dust effect.而防水防尘的机身设计, 也是入门级单 反 相机中比较少见的.But waterproof dustproof fuselage design, is also in the basic level list counter - camera is quit...