Calibration Stations give special transmis
题型:单项选择题
问题:
Calibration Stations give special transmissions for the calibration of ship’s().
A.gyro-compass
B.marine radar
C.DF
D.navigational satellite
Calibration Stations give special transmissions for the calibration of ship’s().
A.gyro-compass
B.marine radar
C.DF
D.navigational satellite