navigation

名词 navigation:

1. the guidance of ships or airplanes from place to place
   同义词：pilotage, piloting
2. ship traffic
3. the work of a sailor
   同义词：seafaring, sailing

1. Navigation is difficult on this river because of the hide rock.
   因为有暗礁，在这条河上航行很困难。
2. The theory and practice of aircraft navigation.
   航空学飞机航行的理论与实践
3. The compass is an instrument of navigation.
   罗盘是航行仪器。
4. Navigation is difficult on this river because of the hidden rocks.
   因为河上有暗礁，所以在这条河上航行很困难。

nav.i.ga.tion

n.Abbr. nav.（名词）缩写 nav.
The theory and practice of navigating, especially the charting of a course for a ship or an aircraft.
航行术：航行的理论或实践，尤其是船或飞行的航行图
Travel or traffic by vessels, especially commercial shipping.
海上交通：海土交通或航运业，尤其指商业运输

【引伸】
nav.iga.tional
adj.（形容词）