出版大圆海图覆盖大西洋，太平洋和印度洋（各大洋近赤道带水域除外）。
Gnomonic charts are published covering the Atlantic, Pacific and Indian Oceans, except for an equatorial belt in each ocean.
出版大圆海图覆盖大西洋，太平洋和印度洋（各大洋近赤道带水域除外）。
Gnomonic charts are published covering the Atlantic, Pacific and Indian Oceans, except for an equatorial belt in each ocean.
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