• 1. pivotal element: 主元素 | 枢轴元素
• 2. elimination of pivotal element: 知素消去法
• 3. pivotal element equation: 枢轴元素方程

• 1.The kitchen is a pivotal element connecting the two houses.
  厨房是连接两座房子的关键要素。
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• 2.Macrophage migration inhibitory factor(MIF), a potential pro inflammatory cytokine, is a pivotal regulatory element in the nature and adapted immune.
  巨噬细胞移动抑制因子（MIF）是一种潜在的促炎细胞因子，是天然免疫和获得性免疫中的关键调节元件。
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• 3.The dissertation analyses the air spring and spring bracket which belong to the air suspension system as pivotal components taking use of the finite element theory and method.
  论文应用有限元理论与方法，研究分析了空气悬架的关键元件——空气弹簧和弹簧支架。
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