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TOEFL IELTS BNC: 7830 COCA: 6600
refine
rɪfn rɪˈfaɪn
Word forms: 3rd person singular present tense refines, present participle refining, past tense , past participle refined
1 VERB [usually passive] 提炼;精炼 When a substance is refined, it is made pure by having all other substances removed from it. 提炼;精炼
  • Oil is refined to remove naturally occurring impurities. [be VERB-ed]

    油经过提炼去除天然存在的杂质。

refining
  • ...oil refining.

    炼油

2 VERB [usually passive] 改进,改善,改良(过程、理论或机器) If something such as a process, theory, or machine is refined, it is improved by having small changes made to it. 改进,改善,改良(过程、理论或机器)
  • Surgical techniques are constantly being refined. [be VERB-ed]

    外科手术的技术不断得到完善。

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