refine (v) (improvement) | bijschaven (v) (improvement) |
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refine (v) (chemistry) | raffineren (v) (chemistry) |
refine (v) (improvement) | oppoetsen (v) (improvement) |
refine (v) (chemistry) | klaren (v) (chemistry) |
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refine (v) (improvement) | bijwerken (v) (improvement) |