The left femoral head has irregular contour, patchy sclerosis, and subchondral lucency, with collapse and fragmentation.
左股骨头塌陷，形态不规则，可见斑片状硬化区及软骨下透光区。
Cutting direction is an important factor for the efficiency of nc machining, esp. for that of irregular contour of free surfaces which are composed of multi-surfaces.
走刀方向对数控加工的效率有重要影响，尤其对于多曲面拼接自由曲面不规则轮廓区域的数控加工。
Septal thickening associated with fibrosis is characteristically irregular in contour and associated with distortion of lung architecture.
小叶间隔纤维化的特征性改变为轮廓不规则增厚及显著的肺结构改变。
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