depth of neutral axis
... electrical neutral axis 电气中性轴 ; 电中性线 ; 电中性轴 depth of neutral axis 中和轴高度 mechanical neutral axis 机械中性轴 ...
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计算部分预应力混凝土梁开裂后截面应力时，需求解中和轴高度的三次方程，使计算显得比较复杂。
It is rather complicated to compute the neutral axis in partially pre-stressed concrete beams after cracking, since we have to solve a cubic equation.
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