25. The-low polar orbiting satellite system provides the coverage of _
A: sea areas Al and A2
B: sea areas AJ, A2, A3 and A4
C: sea area A3 .
D: sea area A4
A: sea areas Al and A2
B: sea areas AJ, A2, A3 and A4
C: sea area A3 .
D: sea area A4
举一反三
- 23. The low polar orbiting satellite system provides the coverage of____. A: sea area A4 B: sea areas Al and A2 C: all over the world D: sea areas Al, A2, A3 and A4
- The low polar orbiting satellite system provides the coverage of （ ） A: Area A4 B: Area Aland A2 C: Area A3 D: Area Al. A2.A3and A4
- 智慧职教: Sea area A2 is an area within the coverage of at least one_________.
- Area A2 is an area. excluding sea area Al. within the coverage of at least one( ) . A: VHF coast station B: MF coast station C: satellite D: RCC
- ______ is sea area A2. A: An area within coverage of INMARSAT geostationary satellites B: An area, excluding sea area A1, within coverage of Medium Frequency (MF) coastal radio stations in which continuous DSC alerting is available C: An area within coverage of VHF coast radio stations in which continuous DSC alerting is available D: The extreme polar regions