A.Separated line
B.Divided line
C.Reference line
D.Segregated line
您可能感興趣的試卷
你可能感興趣的試題
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
A.velocity of the current
B.bottom characteristics
C.depth of the water
D.speed over the ground
A.tree or log awash in a nearly vertical position
B.crew member who refuses to work
C.upstream end of a land wall
D.buoy that is adrift
A.high pressure system
B.low pressure system
C.high dew point
D.low dew point
最新試題
A barometer showing falling pressure indicates the approach of a（）.
Error may be introduced into a magnetic compass by（）.
An ECDIS is required to display which information?（）
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（）.
You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced?（）.
（）the canal transit，the radar was operating.
A Doppler log in the volume reverberation mode indicates（）.
The transmission time duration of a single pulse of radio-frequency energy is a function of the（）.
（）should be used during the poor visibility if the radar’s screen shows heavy sea returns.
How is variation indicated on a small-scale nautical chart?（）.