A.RINGS INT
B.SWEEP INT
C.REPEATER
D.GONIOMETER
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A.ZERO CLEARING
B.ANTI-CLUTTER-RAIN
C.DIMMER
D.CURSOR
A.bearing circle
B.pelorus
C.bearing bar
D.alidade
A.spider element
B.sensitive element
C.link arm
D.pickup transformer
A.high or low
B.AC or DC
C.strong or weak
D.on or off
A.gyro-compass
B.marine radar
C.DF
D.navigational satellite
最新試題
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
With respect to automatic identification systems（AIS），which information is required to be broadcast every 1 to 10 seconds（）.
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.
To obtain accuracy in fixing by DF，（）and three stations should be used.
When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.
Automatic identification systems（AIS）are required to（）.
Radar makes the most accurate determination of the（）.
Which one of the followings does not limit the effective range of radar（）.
（）is not an alarm required by IMO standards to be available on the ECDIS.
Loran-C uses the multiple pulse system because（）.