The essay analyses free vibration problem of laying bed build-up board of antisymmetry angle with spline finite element method.
本文用样条有限元法，分析了反对称角铺设层合板的自由振动问题。
A new method that uses the greatest inclining moment to calculate the free surface effect to the great angle stability in the paper.
本论文提出了按最大倾斜力矩进行自由液面对大倾角稳性影响计算的修正方法。
This paper presents two kinds of new methods for setting out circular curve: free angle and tangent length method.
介绍了测设和检验圆曲线的两种新方法：任意角夹角法和任意切线长支距法。
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