The navigational term set of current means().
A、velocity of current in knots
B、direction from which the current folws
C、estima ed current
D、direction toward which the current flows
A、velocity of current in knots
B、direction from which the current folws
C、estima ed current
D、direction toward which the current flows
A、the coastal navigation B、the celestial navigation C、traditional navigation D、the great circle navigation
A、To navigate intentionally B、To navigate intensely C、To navigate carefully D、To navigate completely
A、To navigate intentionally B、To navigate intensely C、To navigate carefully D、To navigate completely
A、A.continue to be responsible for the safe navigation of the ship B、B.Leave the bridge C、C.Keep the watch on the bridge D、D.Use any available navigational aids necessary to ensure that the ship follows the planned course
A、IALA Buoyage system B、hydrography,topography,navigational aids and their services C、basic meteorology and navigation in ice and hazards and restrictions to navigation D、information on tides,currents and characteristics of the sea
A、navigating with a low diesel engine speed B、navigating with a stable diesel engine speed C、increasing the efficiency of propeller D、increasing fuel injection
A、A.for precise navigation in coastal waters B、B.by measuring the phase difference of the dots and dashes C、C.as an aid to ocean navigation D、D.if the vessel is fitted with a special Consol receiver
A、has nothing to do with navigation B、dangerous to navigation C、the mine is drifting with the wind D、the mine is not sighted by the vessel
A、leaked into navigable waters B、poured into navigable waters C、pumped into navigable waters through a fixed piping system D、all of the above