The IRR sensitivity analysis by the interpolation method has three disadvantages: too much calculation, plotting without strictness and lack of reliable evaluation standard.
内插法求解irr敏感性分析存在三个不足之处：计算量繁琐、作图不严谨和缺乏可靠的评价标准。
However, it is restricted in application owing to the lack of a sound theory about the calculation of force of the parabolic oblique arch bridge.
但对抛物线斜板拱桥的受力计算尚无成熟理论，使之应用受到限制。
Because multiline big Angle skew bridge is lack of theory and experience calculation method at present, it needs to be experimented by hydraulic model.
针对多线斜交桥渡在斜交角度较大的情况下，目前尚缺少理论及经验计算方法的特点，对某多线大角度斜交桥渡进行了水工模型试验。
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