international conference to descipline the use of radar in maritime navigation
Related Translations:
海上: at sea; on the sea; seaborne 短语和例子海上风暴 a storm at sea; 海上霸权 maritime hegemony; 海上保险 marine insurance; 海上避撞规则 rules of the road at sea; 海上补给 sealift; seaborne supply; supply by sea; 海上采油 of