With several monitoring stations operating in Antarctica, Russia is trying hard to counter America's dominance in the field of worldwide navigational facilities.
出自-2016年12月閱讀原文
Nations are also pressing ahead with space research and satellite projects to expand their global navigation abilities.
出自-2016年12月閱讀原文
柯林斯高階英漢雙解學習詞典釋義
N-UNCOUNT
航行;航海
You can refer to the movement of ships as navigation .