was refining
-estuve refinando
Past progressiveconjugation ofrefine.There are other translations for this conjugation.

refine

At the beginning of April the country was refining at 65% of its normal capacity due to a shortage of sugarcane.
A principio de abril, debido al insuficiente abasto de caña, el país estaba moliendo al 65% de la norma potencial.
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