智慧职教: An MES can be used in Inmarsat system________.
举一反三
- 智慧职教: The working frequency band for a LES in Inmarsat system is_______band.
- 智慧职教: The IMN of Inmarsat-F77 MES used for 64 kbps ISDN service is_______
- The followings are used in the GMDSS except _________. A: the Inmarsat system B: VHF， MF and HF DSC systems C: the Cospas-Sarsat system D: AIS systems
- 智慧职教: Which of the following two-way communications can be made through Inmarsat without charge?
- The system manager used by a fast processor can .