The archipelago is a hazardous traffic median in the great circle route , the shortest path between ports on either side of the north pacific 多岛海域是大圆航线上极具危险的运输中枢,也是连接北太平洋各端港口的最短通道。
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。
With argumentation system and differential system , gnss is capable of supporting en route flight and cat iii precision approach . this system can meet the need of all flight phases in terms of integrity , precision and continuity . with the application of area navigation and required navigation performance ( rnp ) , this would make the parallel route , random route and direct flight route possible , and also improves the efficiency of air space and the flight safety 在导航系统中,全球卫星导航系统是其主要成分,通过增强系统和差分技术, gnss具有支持从航路飞行到类精密进近的能力,在完好性、精度、可用性、连续性上都可以满足飞行各阶段的要求;随着区域导航和所需导航性能的实施,平行航路、随机航路和起点和终点之间的大圆航线直飞得以实现,提高了空域利用率和飞行安全。
大圆: great circle航线: airline or shipping line大圆航线图: great circle sailing chart; greatcirclesailingchart大圆航线分段: great circle section混合大圆航线: composite track; compositetrack天文坐标大圆航线: acc astronomical great circle course大圆航线分段大圆航行分段: great circle section大圆航程: distance by great circle track大圆航法: orthodromics; orthodromy大圆航海术: great-circle sailing大圆航迹: great-circle track大圆航路图: great circle track chart大圆航向: great-circle course大圆航行: great circle sailing大圆航行法: great circle sailing初始大圆航路: initial great-circle course大圆航行分段: great circle section混合大圆航行: composite sailing天文大圆航向: astronomical great circle course最终大圆航向: final great-circle course大圆弧航线: course; great circle; great circle route大圆圈航线: great circle course; great-circle route大圆航法导航仪: circumnavigator大圆航行的经度差: great circle differential longitude大圆航行分点经度: great circle differential longitude