A.one-millionth part of a second
B.one-thousandth part of a second
C.one-hundredth part of a second
D.one-tenth part of a second
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A.persistence
B.pulse repetition rate
C.pulse length
D.rotation rate
A.carrier frequency
B.pulse repetition rate
C.pulse length
D.pulse repetition time
A.magnetron
B.receiver
C.indicator
D.modulator
A.transmitter
B.antenna system
C.indicator
D.modulator
A.persistence
B.pulse repetition rate
C.pulse length
D.resolution
最新試題
Compass error is equal to the（）.
What will NOT induce errors into a doppler sonar log?（）
An ECDIS is required to display which information?（）
AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE，MASTS，ETC means（）.
Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
How is variation indicated on a small-scale nautical chart?（）.
The number of pulses of energy transmitted per second is call the（）.
Compass deviation is caused by（）.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
The radar component that generates the radio-frequency energy in the form of short powerful pulses is which of the following?（）.