refine (v) (chemistry) | filtrar (v) (chemistry) |
refine (v) (improvement) | aprimorar-se (v) (improvement) |
refine (v) (chemistry) | refinar (v) (chemistry) |
refine (v) (improvement) | refinar-se (v) (improvement) |
refine (v) (chemistry) | depurar (v) (chemistry) |