message buoy造句

The Shadow ship destroys Keffer's Starfury, killing him, but not before he is able to launch a message buoy with recordings of the Shadow ship.
After three years, the only three surviving members-Stanislaus, Forrester and Scully-send a message buoy through the dimensional rift which brought them to this world.
And the ISN network, having discovered Keffer's message buoy, transmits the first public images of the terrifying Shadow vessel in hyperspace . . . an ominous warning of the disaster soon to come.
It's difficult to find message buoy in a sentence. 用message buoy造句挺难的