- 为什么以180经线作为日界线分界线 日界线夹角有可能为钝角吗 为什么日界线和180经线不完全吻合 为什么日界线设在180度经线 日界线和哪条经线重合 日界线的经线展开图 日界线大致与什么经线重合 日界线与180度经线不完全重合 日界线不完全与什么度经线重合 日界线大概与什么经线重合 日界线问题关键是利用已知条件,在北极点俯视图中找到0时刻所在经线
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我来说两句