A conception of minor core determined by the small beam and small column, and a conclusion that the shear capacity of abnormal joint depends on minor core are put forward in this paper.
提出了由小梁小柱决定的“小核芯”概念，得出框架异型节点的承载能力取决于异型节点“小核芯”的结论。
Excessive clearance of mechanism joint pair will cause abnormal vibration and noise, accelerate fatigue and wear and seriously affect the dynamic performance of machine.
机构铰接副处过大间隙将引起异常的振动与噪声，加速了疲劳与磨损，严重地影响了机器的动态性能。
Objective: To study the early abnormal X-ray features after hip joint replacement, the causes and their clinical relationship.
目的：探讨髋关节置换术后早期异常X线表现、成因及与临床的关系。
Results 6 cases of pelvic insufficiency fracture had abnormal X ray findings of fracture lines and linear scleroses oriented parallel to the adjacent joint or perpendicular to the main trabeculae.
结果6例X线平片有阳性征象，表现为与邻近关节平行或与主要骨小梁垂直的骨折线或线状硬化。
Results 6 cases of pelvic insufficiency fracture had abnormal X ray findings of fracture lines and linear scleroses oriented parallel to the adjacent joint or perpendicular to the main trabeculae.
结果6例X线平片有阳性征象，表现为与邻近关节平行或与主要骨小梁垂直的骨折线或线状硬化。
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