In a definite scope, the impact time and contact area are linearly increased while the maximum acceleration and bruise volume reduced with the increment of thickness of cushion materials.
在一定范围内，随着缓冲材料厚度的增加，碰撞时间与接触面积线性增加，最大加速度与损伤体积相应减小。
Objective: To assess the diagnostic value between preoperative and post-op with volume-reduced bullae by quantitative CT pulmonary function.
目的：研究定量CT肺功能对肺大泡减容术前及术后的肺功能评估。
Objective: To assess the diagnostic value between preoperative and post-op with volume-reduced bullae by quantitative CT pulmonary function.
目的：研究定量CT肺功能对肺大泡减容术前及术后的肺功能评估。
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