精煉廠

refinery (of oil etc)

essence / extract / vitality / energy / semen / sperm / mythical goblin spirit / highly perfected / elite / the pick of sth / proficient (refined ability) / extremely (fine) / selected rice (archaic)

factory / yard / depot / workhouse / works / (industrial) plant

to refine (a substance) / to purify / to refine (one's skills, writing etc) / refined / polished / succinct / skilled / capable

to refine / to smelt