• 1. Between Margin and Center: 边缘与中心之间
• 2. difference between center and margin: 罩顶厚差

• 1.Objective: To study the quantitative relationship between the lateral margin of the superior facet and the pedicle center of lumbar vertebrae.
  目的：探讨腰椎上关节突外缘的形态特点及其与椎弓根中心的关系。
  dict.yoduao.com
• 2.And the static margin can be adjusted by change the vertical distance between the aerodynamic center and the center of gravity.
  其静稳定性裕度可以通过重心与气动中心的纵向距离来调节。
  dict.yoduao.com

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