A.relative display
B.composite display
C.stabilized display
D.unstabilized display
您可能感興趣的試卷
你可能感興趣的試題
A.unstabilized display
B.stabilized display
C.composition display
D.relative display
A.on the same course as your vessel
B.at the same speed as your vessel
C.on the same course and speed as your vessel
D.on a reciprocal course at the same speed as your vessel
A.Separated line
B.Divided line
C.Reference line
D.Segregated line
A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water
最新試題
An ECDIS is required to display which information?（）
An ECDIS is required to display which information?（）
An electronic depth finder operates on the principle that（）.
A radar display in which North is always at the top of the screen is a(n)（）.
A FICTIVE LINE DISPLAYED ON THE RADAR SCREEN SEPARATING THE FAIRWAY FOR INBOUND AND OUTBOUND VESSELS SO THAT THEY CAN SAFELY PASS EACH OTHER defines（）.
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE，MASTS，ETC means（）.
A barometer showing falling pressure indicates the approach of a（）.
An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.
（）is on the panel of radar.
The microsecond unit of time is used in radar applications. The microsecond represents which of the following?（）.