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1.The deviational survey unit measures the parameters of the apex angle and the azimuthal angle of the bore hole;
测量单元用于测量钻孔的顶角与方位角等参数；收藏指正
2.The thickness varies according to the half-apex angle, and the forming limit half-apex angle is the key which NC incremental sheet metal parts forming process succeeds, it relates to the material and thickness of the sheet metal.
变形区厚度的变化与成形半顶角有关，其中，成形极限半顶角是数控渐进成形能否成功的关键，它不仅与材料有关，而且与板料厚度有关。收藏指正
3.and the rms of both wing tips and apex reaches maximum value for elastic wing around the stall angle α=20°.
而在失速迎角α=20°附近,机翼顶点和翼梢变形的方差最大。收藏指正
4.[Method]From 2000 to 2004,57 patients with scoliosis received spinal instrumentation with thoracic vertebral pedical screw fixation system,the primary coronal or sagittal Cobb′s angle,the distance between the center of apex and C?7 puml line(AVT)and the degree of the rotation of the apex vertebral body(AVR)were measured.
[方法]应用胸腰椎椎弓根螺钉系统治疗青少年脊柱侧凸,通过比较手术前后冠状面矢状面Cobb′s角、顶椎移位、顶椎旋转的变化进行疗效评价。 [结果]本组57例,随诊12~41个月,术前冠状面Cobb′s角平均67·8°,术后平均21·2°;收藏指正
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