介绍对梁体进行的检测、荷载试验，以及对桥梁上部结构及开裂截面的实际受力状况的分析。
In this paper, the inspection, load tests for the beams and analysis of actual mechanical behavior of the superstructure and cracked sections thereof are presented.
MRI是一种非侵入性技术，它能通过轴向横截面及失状位成像明确椎体滑移以及神经结构受压情况。
MRI is a noninvasive technique that can also define vertebral slippage and neural element compression through cross-sectional axial and sagittal imaging.
研究了金属熔体的小截面送料双频电磁成形过程。
The process of dual frequency electromagnetic forming with small cross section rod feeding is studied.
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