refiner

n person, firm or machine that refines (refine 1)做精炼加工的人、 企业或机器: sugar refiners 精糖制造者.

refectory, refer, refer oneself to, refer to, refer to ...as, refer to sb. as, refer to...as, referable, referee, reference, reference book, reference marks, referendum, referent, referral, referring, refill, refine, refined, refinement, refinery, refit, reflate, reflation, reflationary, reflect, reflect on, reflection, reflection (Brit also reflexion), reflective, reflectively, reflectivity, reflector, reflex, reflex angle, reflex camera, reflexion, reflexive, refloat, refocus,