正常情况下，飞机飞越大洋时要和控制塔保持联络，需要及时告知飞机的航线和位置等详细信息。
Normally, aircraft crossing the oceans are in contant contact with traffic control, updating them with details of their route information or location.
安妮摩罗林博通常为她著名的飞行家丈夫查理林博当副驾驶员，他们一同开辟了跨越几大洋的飞行航线。
Anne Morrow Lindbergh often acted as co-pilot for her famous aviator husband, Charles Lindbergh, and together, they explored new air routes across several oceans.
航路设计图对航线设计和大洋航行是必要的。
Routeing charts are essential for use in passage planning and ocean voyages.
在古代，这一地区是一条繁忙国际航线，因此，2000多艘中国古代大型沉船沉睡在这里的大洋深处。
"As a busy international sea lane in ancient times the region has more than2000ancient Chinese" titanics "resting on the ocean floor."
在古代，这一地区是一条繁忙国际航线，因此，2000多艘中国古代大型沉船沉睡在这里的大洋深处。
"As a busy international sea lane in ancient times the region has more than2000ancient Chinese" titanics "resting on the ocean floor."
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