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Use "circularizing" in a sentence
"We note that they are circularizing members asking for support."
"After a number of orbits the drag induced by this maneuver will lower the apogee (highest point) of the orbit to altitudes that can be reached by the Space Shuttle (such slow-aerobraking apogee-reduction maneuvers were successfully undertaken by the Magellan spacecraft at Venus in 1994), after which a small propulsion burn by the hab will raise its perigee out of the atmosphere, circularizing and stabilizing the orbit."
"On December 16th, I told you I was circularizing the Board members as to this request."