如果胸膛往外挺拔，背部的中段部位就会笔直，这样允许脊柱能形成一条垂直线。
If the chest is sticking out then the middle of the back will be flat allowing for the spinal cord to stack in a vertical line.
结果发现，对整车强度和刚度有重大影响的关键部位并不在车辆底架，而在上侧梁中段。
The results show that the key position which mainly affects the strength and the rigidity of the wagon body is in the middle position of the upper-side beam instead of the low frame.
方法在输尿管中段疑为结石部位使用C DFI进行检查。
Methods Examine the suspected part of central section of the ureter by CDFI.
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