nav·i·ga·tion /ˌnævəˈgeʃən/
 航行,航海,航空,導航,駕駛;通過
 navigation
 導航設備
 navigation
 導航
 Nav·i·ga·tion n.
 1. The act of navigating; the act of passing on water in ships or other vessels; the state of being navigable.
 2. (a) The science or art of conducting ships or vessels from one place to another, including, more especially, the method of determining a ship's position, course, distance passed over, etc., on the surface of the globe, by the principles of geometry and astronomy. (b) The management of sails, rudder, etc.; the mechanics of traveling by water; seamanship.
 3. Ships in general. [Poetic]
 Aerial navigation, the act or art of sailing or floating in the air, as by means of airplanes or ballons; aviation; aeronautic.
 Inland navigation, Internal navigation, navigation on rivers, inland lakes, etc.
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 navigation
      n 1: the guidance of ships or airplanes from place to place [syn:
            pilotage, piloting]
      2: ship traffic; "the channel will be open to navigation as
         soon as the ice melts"
      3: the work of a sailor [syn: seafaring, sailing]