航行
navigation;navigate by water;sail;navigate by air,fly
公共～權(quán)navigation servitude/空中～aerial navigation;flight/～規(guī)則navigation rules /～記錄navigational records/～能見(jiàn)度navigational visibility/～通告navigation warning/～事故navigational accident (or casualty)/～區(qū)navigation zone/～權(quán)利right of navigation;navigational right