用辛普森自适应算法进行了仿真计算，并与大圆航线的计算结果进行了比较。
A simulation calculation was made by the Simpson numerical integral, and the simulated results of the initial course and route distance were compared with those based on the great circle route.
详细推导并提出了扩展导航参数及大圆航线航迹解算算法，还给出了算法流程图。
Extended navigation parameters (ENP) and great circle flight path (GCFP) calculated algorithms are presented in detail and the algorithm flow chart is presented.
对海运监督的缺失和对海难准备 工作的不足，对大圆航线来说并不少见，糟糕的当地情况亦是如此。
This lack of maritime surveillance and disaster preparedness is not unique to the great circle route, but the nasty local conditions are.
对海运监督的缺失和对海难准备 工作的不足，对大圆航线来说并不少见，糟糕的当地情况亦是如此。
This lack of maritime surveillance and disaster preparedness is not unique to the great circle route, but the nasty local conditions are.
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