A.Deviating from a planned route
B.Approach to waypoints and other critical points
C.Light house detecting
D.Larger scale chart available
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A.detective Availability
B.local environmental conditions
C.autonomous mode versus differential correction mode versus RTCM mode
D.the averaging of recorded locations
A.Vector chart format
B.Raster chart data
C.pixel
D.Electronic Nautical Chart
A.Card
B.Needle
C.Lubber's line
D.Gimbals
A.on loran charts covering areas where sky waves are used
B.in the Radio Aids to Navigation，PUB 117
C.in the Loran-C Correction Tables
D.Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading
A.full confirmation
B.precise appreciation
C.immediate assessment
D.timely recognition
最新試題
Radar makes the most accurate determination of the（）.
（）is not a factor which will affect the accuracy of GPS receiver.
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.
Which one of the followings does not limit the effective range of radar（）.
The（）transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.
With respect to automatic identification systems（AIS），which information is expected to be broadcast every 1 to 10 seconds（）.
Which statement concerning GPS is TRUE（）.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
Would you please（）on the radar?
The information received by AIS will be displayed on（）.