單詞
preformed
['pri:'f?:md]
基本信息
- adj. 預(yù)成型的，預(yù)制成的
- v. 預(yù)先形成（preform的過(guò)去分詞）
英文詞源
- preformed (adj.)
- c. 1600, from Latin praeformare or else from pre- + formed (see form (v.)). Of plastic and synthetic products, from 1918.
雙語(yǔ)例句
- 1. The colorimetric methods involve the bleaching of a preformed color by the fluoride ion.
- 比色法涉及氟離子對(duì)預(yù)先形成的顏色的消色作用.
來(lái)自辭典例句
- 2. Great works are preformed not by strength but by perseverance.
- 偉大工作的完成,不是憑力量,而是憑毅力.
來(lái)自互聯(lián)網(wǎng)
- 3. This is also preformed on covered surfaces a stacked assembly : substrate - pre - form - die.
- 在疊層的組裝工藝中,比如基板 - 焊片 - 芯片,即使有部分表面被蓋住了,這種氣氛同樣有效.
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- 4. Preformed hole allows for convenient tagging.
- 預(yù)制的孔使得標(biāo)記簡(jiǎn)單方便.
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- 5. They preformed meritorious deeds in the fight to defend the frontiers of our motherland.
- 他們?cè)诒Ｐl(wèi)祖國(guó)邊疆的戰(zhàn)斗中立了功.
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preformed相關(guān)單詞