结论正确认识及测量正常肺尖及其沿肋骨腋中线内缘的伴影，有助于鉴别胸膜肥厚，对阅读胸片有较大帮助。
Conclusion Correctly understanding and measuring the apex pulmonis companion shadow, it 's good to differentiate from hypertrophic pleura or reading chest films.
加腋型节点的塑性铰在远离柱翼缘面的梁上形成。
Studies indicate that the connection with welded haunch shifts plastic hinge away from the face of the column.
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