| 正面 | 10713.extraction 英 [ɪk'strækʃ(ə)n; ek-]美 [ɪk'strækʃən]     |
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| 背面 |      释义： 1、ex- "out" + tract- + -ion.n. 取出；抽出；拔出；抽出物；出身 例句： 1. Petroleum engineers plan and manage the extraction of oil.石油工程师规划并管理石油的提炼。 extraction (n.)early 15c., "process of withdrawing or obtaining" (something, from something else), from Old French estraction "extraction, origin" (12c.) or directly from Medieval Latin extractionem (nominative extractio), noun of action from past participle stem of Latin extrahere "to draw out" (see extract (v.)). Meaning "that which is extracted" is from 1590s. Meaning "descent, lineage" is from late 15c." |