提煉的英文：
extract
refine
purify
process

參考例句：
  • Kerosene is a by-product of petroleum refining.
    煤油是提煉石油的副產(chǎn)品。
  • The latter was refined from a drama episode (one acted as two characters: the older one shouldering the younger).
    后者是提煉戲曲片段（一人扮演兩人的“老背少”）。
  • More ammonium sulphate solution is being recovered in the process of distilling shale oil
    在提煉油頁巖的過程中回收的硫酸氨液比過去多了。
  • Abstract metal from ore
    由礦砂提煉金屬
  • Oil must be refined before it can be used.
    石油使用前必須提煉。
  • They distilled alcohol from grain
    他們從谷物中提煉酒精。
  • A miner extracts gold from the earth.
    礦工從泥土里提煉黃金。
  • You refine things to make them more pure.
    提煉東西就是使之變得純凈。
  • Let's abstract away from this particular example.
    讓我們把這個(gè)例子中的道理提煉出來。
  • Refine sugar [oil, metals]
    精制[精煉,提煉]糖[油,金屬]
extract是什么意思：
n. 提取物，精華；汁；摘錄，選段；選曲
v. 摘錄，節(jié)選；獲取；設(shè)法得到；提取；取出；拔（牙）
  • extraction feed
    萃出原料|抽出原料
  • extraction of groundwater
    地下水的抽出
  • bond extracting punch
    導(dǎo)接線撤出沖頭
refine是什么意思：
v. 精煉，提純，提煉；使高雅；改善
  • grain refined zone
    再結(jié)晶區(qū)
  • You must refine your manners.
    你必須使你的舉止優(yōu)雅高尚。
  • Affectedly delicate or refined;mincing.
    過分講究的過于精致或優(yōu)美的；矯揉造作的
purify是什么意思：
v. 使純凈，凈化；使純潔；精煉；使純正
  • To cleanse or purify or become cleansed or purified.
    （使）清潔，（使）凈化
  • purify or refine,esp by repeated distillation
    凈化或精煉;（尤指）分餾,精餾
  • To increase the concentration of, separate, or purify by or as if by distillation.
    精煉用蒸餾法或好象用蒸餾法增加濃度、分離或凈化

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