A.which is assisted
B.that assist you
C.when you assisted
D.when being assisting
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A.the range of antenna can cover everywhere in the world
B.we can know the ship’s exact position
C.that the distress alert can be located as soon as possible
D.antenna of permanent earth stations may be directed towards fixed points in the sky
A.which
B.on which
C.at which
D.in which
A.it necessary
B.it is necessary
C.it necessary to
D.necessary
A.depend on
B.depending on
C.dependent on
D.depended on
A.exchange
B.to exchange
C.exchanging
D.exchanged
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SOLAS ships shall be equipped with().
Distress traffic is the communication()between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
By using()system a ship can send a distress message and know with certainty it will be received.
Please use()for().
()will form the basis for distress alerting and safety calling.
As each MSI message will have a unique identity, the printing of messages already received correctly is().
For COSPAS-SARSAT system,()usually transmit initial COSPAS-SARSAT alert.
The priority of EGC messages is classified by().
COSPAS-SARSAT is intended to be used for().
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through()system.