A.He space component
B.Control component
C.User component
D.Alarming component
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A.Deviating from a planned route
B.Approach to waypoints and other critical points
C.Light house detecting
D.Larger scale chart available
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
最新試題
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
（）is not a factor which will affect the accuracy of GPS receiver.
Would you mind（）your DF?
Which of the following statements is TRUE regarding crane operations（）.
In using Loran-C，skywave reception gives greater range but is（）.
Loran-C uses the multiple pulse system because（）.
The line connecting the Loran-C master station with a secondary station is called the（）.
Loran-C is which type of system（）.
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.
The loran lines drawn on navigation charts represent（）.