V2EX metallic foil

Metallic Foil

Definition / 释义

金属箔;金属薄片:指被压延得很薄的金属片(如铝箔、金箔等),常用于包装、隔热、装饰、导电/屏蔽等用途。(更口语时也常说 foilaluminum foiltin foil。)

Pronunciation / 发音(IPA)

/mtlk fl/

Examples / 例句

A sandwich wrapped in metallic foil stays warm longer.
用金属箔包起来的三明治能更久保温。

The engineer added a layer of metallic foil to reduce heat loss and block electromagnetic interference.
工程师加了一层金属箔,用来减少热量流失并屏蔽电磁干扰。

Etymology / 词源

metallic 来自 metal(金属)+ 形容词后缀 -ic,表示“金属的、像金属的”。foil 原义与“薄片、薄叶”有关,后来在英语里固定指“(尤指金属的)薄片/箔”。合起来 metallic foil 就是“金属材质的薄箔”,属于较偏技术/材料与包装语域的说法。

Related Words / 相关词

Literary Works / 文学作品中的用例

(“metallic foil”这一完整搭配在文学文本中相对少见;文学里更常写作 foil / tin foil / gold foil 等变体。以下作品中出现了与“金属箔(包裹物)”相关的表达与情景:)

  • Roald Dahl, Charlie and the Chocolate Factory(如巧克力被金色箔纸包裹的描写常见)
  • J. K. Rowling, Harry Potter and the Philosopher’s Stone(如糖果/巧克力以金色箔纸包装的描写)
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