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首頁英語詞典preformedpreformed的意思

preformed

['pri:'f?:md]
  • adj. 預(yù)成型的,預(yù)制成的
  • v. 預(yù)先形成(preform的過去分詞)

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預(yù)先形成的顏色的消色作用.

來自辭典例句

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.

來自互聯(lián)網(wǎng)

4. Preformed hole allows for convenient tagging.
預(yù)制的孔使得標(biāo)記簡單方便.

來自互聯(lián)網(wǎng)

5. They preformed meritorious deeds in the fight to defend the frontiers of our motherland.
他們在保衛(wèi)祖國邊疆的戰(zhàn)斗中立了功.

來自互聯(lián)網(wǎng)