The transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.(1.0)
A.AIS B.ECDIS C.GPS D.VDR正确答案A
The transmits own ship data cyclically via two defined VHF channels and receives the same data of the other ships and objects that are equipped with AIS systems.(1.0)
A.AIS B.ECDIS C.GPS D.VDR正确答案A
