这些骨折经常不能在后前位和侧位片上表现出来，以致于它们被误诊为踝扭伤。
Often, these fractures are not seen on the ap and lateral radiographs of the ankle joint resulting in them being misdiagnosed as an ankle sprain.
本文还介绍了为提高复合片钻头经济指标的钻头参数设计问题，如负前角，侧旋角等。
This paper also discusses bit parameter design to improve the economy of PDC bits, such as negative rake Angle and side rotation Angle.
在术前、后全脊柱侧位片测量腰椎总前凸、胸椎总后凸、骶骨倾斜度和颈7铅垂线。
Total lumbar lordosis, thoracic kyphosis, sacral slope, and C7 plumb line were measured on the pre - and postoperative whole spine lateral views.
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