1·Conclusion: Synthetizing plain film and MRI imaging features, was valuable of diagnosing giant cell tumor of bone in long bone.
结论：综合平片与MRI表现，对长骨骨巨细胞瘤诊断具有价值。
2·The characteristics of iron oxide black by crystal seed method and basic principle of synthetizing its crystal seed were discussed.
本文论述了晶种法氧化铁黑的特点和合成氧化铁黑晶种的基本原理。