How to use in-sentence of “refine”:
+ On September 8, 2001, Titania occultationocculted a faint star; this was a chance to both refine its diameter and ephemeris, and to detect any extant atmosphere.
+ There are two basic processes to refine metals: Refining by fire, and refining by electrolysis.
+ The milk of a cow is believed to refine a person.
+ Karma is the best teacher, forcing people to face the consequences of their own actions and thus improve and refine their behavior, or suffer if they do not.
+ Chemical engineers refine the petroleum which goes through a heating process.